Finding the Third Proportional to 76,561,132.50 and 168,002,572.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,561,132.50 : 168,002,572.50 = 168,002,572.50 : x
2. Step 2: Convert to fraction form
   76,561,132.50/168,002,572.50 = 168,002,572.50/x
3. Step 3: Cross multiply
   76,561,132.50x = 168,002,572.50 × 168,002,572.50
4. Step 4: Simplify right side
   76,561,132.50x = 28,224,864,366,617,756
5. Step 5: Solve for x
   x = 28,224,864,366,617,756/76,561,132.50
6. Step 6: Final answer
   x = 368,657,874.37