Answer:
2,000,000
Explanation:
First of all, I think that you are asking:
=?
So, because multiplication is commutative, we are allowed to group together what we know and what we will deal with later:
can be rewritten as

10*10*100*2=20,000

So, what we do know is that when we take the square root of a number and multiply it by itself (or "square" it) we will get back the number that we started with.
So:

We can rewrite what we had up top as:



