Finding the Third Proportional to 152,977.50 and 331,374

Step by Step Solution

1. Step 1: Write the proportion equation
   152,977.50 : 331,374 = 331,374 : x
2. Step 2: Convert to fraction form
   152,977.50/331,374 = 331,374/x
3. Step 3: Cross multiply
   152,977.50x = 331,374 × 331,374
4. Step 4: Simplify right side
   152,977.50x = 109,808,727,876
5. Step 5: Solve for x
   x = 109,808,727,876/152,977.50
6. Step 6: Final answer
   x = 717,809.66