Finding the Third Proportional to 152,435,990 and 324,535,540

Step by Step Solution

1. Step 1: Write the proportion equation
   152,435,990 : 324,535,540 = 324,535,540 : x
2. Step 2: Convert to fraction form
   152,435,990/324,535,540 = 324,535,540/x
3. Step 3: Cross multiply
   152,435,990x = 324,535,540 × 324,535,540
4. Step 4: Simplify right side
   152,435,990x = 105,323,316,723,091,600
5. Step 5: Solve for x
   x = 105,323,316,723,091,600/152,435,990
6. Step 6: Final answer
   x = 690,934,711.17