Here's why:
* Scientific notation expresses a number as a product of a number between 1 and 10 (the coefficient) and a power of 10.
* In this case, 6.2 is between 1 and 10, and 10⁵ is the power of 10.
To convert this to standard form, you would simply multiply:
6.2 x 10⁵ = 6.2 x 100,000 = 620,000