Finding the Third Proportional to 152,599 and 331,470

Step by Step Solution

1. Step 1: Write the proportion equation
   152,599 : 331,470 = 331,470 : x
2. Step 2: Convert to fraction form
   152,599/331,470 = 331,470/x
3. Step 3: Cross multiply
   152,599x = 331,470 × 331,470
4. Step 4: Simplify right side
   152,599x = 109,872,360,900
5. Step 5: Solve for x
   x = 109,872,360,900/152,599
6. Step 6: Final answer
   x = 720,007.08