Finding the Third Proportional to 28,545.75 and 63,211.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,545.75 : 63,211.50 = 63,211.50 : x
2. Step 2: Convert to fraction form
   28,545.75/63,211.50 = 63,211.50/x
3. Step 3: Cross multiply
   28,545.75x = 63,211.50 × 63,211.50
4. Step 4: Simplify right side
   28,545.75x = 3,995,693,732.25
5. Step 5: Solve for x
   x = 3,995,693,732.25/28,545.75
6. Step 6: Final answer
   x = 139,975.08