Composition size problem 46.848px 256px

Hello everyone.
I have a problem with the composition size of an LED screen that I have to make, the size is 46,848px 256px, and as you know the maximum size that After gives you is 30,000 in height and width. What I want to know is if there is no possibility of being able to make that screen afterwards, right?
Sorry for my English, I'm using Google Translate