What is the order of the numbers from least to greatest 6.2 x 10^-5, 12.3x10^-7, 5.2x10^3, 3.7x10^-5?

6.2 x 10^-5, 12.3x10^-7, 5.2x10^3, 3.7x10^-5 should be re-written as:

6.2 x 10^-5  => 6.2*10^(-5)
12.3x10^-7  => 1.23*10^(-6)    (Definitely the smallest)          
5.2x10^3     => 5.2*10^3          (Definitely the largest)
3.7x10^-5    => 3.7*10^(-5)

Please compare 6.2*10^(-5) and 3.7*10^(-5).  Which is the smaller?  

Write these four numbers in ascending order.

8.4 10.4 8.9 10.9 have a good day