Finding the Third Proportional to 28,071,862 and 42,315,160

Step by Step Solution

1. Step 1: Write the proportion equation
   28,071,862 : 42,315,160 = 42,315,160 : x
2. Step 2: Convert to fraction form
   28,071,862/42,315,160 = 42,315,160/x
3. Step 3: Cross multiply
   28,071,862x = 42,315,160 × 42,315,160
4. Step 4: Simplify right side
   28,071,862x = 1,790,572,765,825,600
5. Step 5: Solve for x
   x = 1,790,572,765,825,600/28,071,862
6. Step 6: Final answer
   x = 63,785,322.32