Step 1: Note that something is missing in this puzzle and determine what it is (you may have to use it to realize it's gone). When you notice what it is, write it out in blank #1. You will surely agree that there is something impeccable about this missing thing. That ideal quality is the key.
Step 2: 8303765625 13841287201 X 531441 387420489 403.428793493 These numbers also seem to have some mysterious power hidden in them, the quality located above is the key to determining this power. Concerning the value X, when you have deciphered the numbers, you should realize that there are only two options; order them intuitively and choose the one that precedes the other. Using these values, locate their purpose and write it out in blank #2.
Step 3: 340 315 1103 These will be the hardest numbers to understand. Where the numbers in Step 2 derived their power, these numbers get a paltry structure. Using Step 1's quality as the key, unlock the secrets in these numbers. You will have to be guided by intuition and knowledge hence; It will be hard! In the event that you think you are at the decrypted end and still can't make heads or tails, just ask 245 335 310 what it means and that should make it crystal clear. Take the second part to this answer and place it in blank #3.
Ready? Bring me back the result that you ultimately determine and explain the procedure and you will receive my acceptance and praise! Please ask below in the event that you need help, and I will answer within reason. I recommend adding partial answers as this has many parts and using others' knowledge as a resource would be a great idea.
It has been a while, so I will add a hint to those entrenched in Step 2:
There are two numbers that may help to understand the meaning in the hidden numbers discovered in this step: 167 and 39. These numbers are not encoded the same way that the others are; 6 is not the key to understanding their value, but 256 instead (though it was originally only 128).