Finding the Third Proportional to 54,672.75 and 89,275.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,672.75 : 89,275.50 = 89,275.50 : x
2. Step 2: Convert to fraction form
   54,672.75/89,275.50 = 89,275.50/x
3. Step 3: Cross multiply
   54,672.75x = 89,275.50 × 89,275.50
4. Step 4: Simplify right side
   54,672.75x = 7,970,114,900.25
5. Step 5: Solve for x
   x = 7,970,114,900.25/54,672.75
6. Step 6: Final answer
   x = 145,778.56