Whoooo buddy. I really have to spell it out for you don't I? Ok no problem, lets do 4th grade math.
Current population of Georgia is 10.8 million.
Whites = 59.2% or 6,393,600
Blacks = 30.6% or 3,304,800
For purposes of simplicity we won't include the other groups in the calculation capice? That might be a little too much for you. Baby steps. We're just comparing blacks and whites.
Here we go:
If we add 5,000,000 + 3,304,800 we get a total of 8,304,800
White population stays the same at 6,393,600.
Total pop of 15,800,000 when we add 5,000,000 + 10,800,000.
8,304,800/15,800,000 = 52.5% black
6,393,600/15,800,000 = 40.4% white
Boom. Clear majority. See the vision now or were you too slow to follow that?