Do you not understand arithmetic? Do the big numbers hurt your brain?
I undertand math very well thank you. The problem is you don't seem to understand logic. As I pointed out, if you continue that cycle you will get to 225% of the population being Muslim in 2071. The problem is not math, it is your lack of logic. You cannot extrapolate such a simple metric and expect it to hold, that is beyond foolishness it is plain impossible.