Finding the Third Proportional to 151,435,690 and 329,404,469

Step by Step Solution

1. Step 1: Write the proportion equation
   151,435,690 : 329,404,469 = 329,404,469 : x
2. Step 2: Convert to fraction form
   151,435,690/329,404,469 = 329,404,469/x
3. Step 3: Cross multiply
   151,435,690x = 329,404,469 × 329,404,469
4. Step 4: Simplify right side
   151,435,690x = 108,507,304,197,171,968
5. Step 5: Solve for x
   x = 108,507,304,197,171,968/151,435,690
6. Step 6: Final answer
   x = 716,523,985.84