Finding the Third Proportional to 152,599 and 331,469

Step by Step Solution

1. Step 1: Write the proportion equation
   152,599 : 331,469 = 331,469 : x
2. Step 2: Convert to fraction form
   152,599/331,469 = 331,469/x
3. Step 3: Cross multiply
   152,599x = 331,469 × 331,469
4. Step 4: Simplify right side
   152,599x = 109,871,697,961
5. Step 5: Solve for x
   x = 109,871,697,961/152,599
6. Step 6: Final answer
   x = 720,002.74