Finding the Third Proportional to 152,912 and 331,025

Step by Step Solution

1. Step 1: Write the proportion equation
   152,912 : 331,025 = 331,025 : x
2. Step 2: Convert to fraction form
   152,912/331,025 = 331,025/x
3. Step 3: Cross multiply
   152,912x = 331,025 × 331,025
4. Step 4: Simplify right side
   152,912x = 109,577,550,625
5. Step 5: Solve for x
   x = 109,577,550,625/152,912
6. Step 6: Final answer
   x = 716,605.31