Finding the Third Proportional to 82,837,742 and 129,664,820

Step by Step Solution

1. Step 1: Write the proportion equation
   82,837,742 : 129,664,820 = 129,664,820 : x
2. Step 2: Convert to fraction form
   82,837,742/129,664,820 = 129,664,820/x
3. Step 3: Cross multiply
   82,837,742x = 129,664,820 × 129,664,820
4. Step 4: Simplify right side
   82,837,742x = 16,812,965,545,632,400
5. Step 5: Solve for x
   x = 16,812,965,545,632,400/82,837,742
6. Step 6: Final answer
   x = 202,962,624.76