Finding the Third Proportional to 187,737.50 and 391,007

Step by Step Solution

1. Step 1: Write the proportion equation
   187,737.50 : 391,007 = 391,007 : x
2. Step 2: Convert to fraction form
   187,737.50/391,007 = 391,007/x
3. Step 3: Cross multiply
   187,737.50x = 391,007 × 391,007
4. Step 4: Simplify right side
   187,737.50x = 152,886,474,049
5. Step 5: Solve for x
   x = 152,886,474,049/187,737.50
6. Step 6: Final answer
   x = 814,363.00