Finding the Third Proportional to 152,972.50 and 331,364

Step by Step Solution

1. Step 1: Write the proportion equation
   152,972.50 : 331,364 = 331,364 : x
2. Step 2: Convert to fraction form
   152,972.50/331,364 = 331,364/x
3. Step 3: Cross multiply
   152,972.50x = 331,364 × 331,364
4. Step 4: Simplify right side
   152,972.50x = 109,802,100,496
5. Step 5: Solve for x
   x = 109,802,100,496/152,972.50
6. Step 6: Final answer
   x = 717,789.80