Finding the Third Proportional to 60,375 and 128,545.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,375 : 128,545.50 = 128,545.50 : x
2. Step 2: Convert to fraction form
   60,375/128,545.50 = 128,545.50/x
3. Step 3: Cross multiply
   60,375x = 128,545.50 × 128,545.50
4. Step 4: Simplify right side
   60,375x = 16,523,945,570.25
5. Step 5: Solve for x
   x = 16,523,945,570.25/60,375
6. Step 6: Final answer
   x = 273,688.54