Finding the Third Proportional to 40,624.50 and 54,328.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,624.50 : 54,328.50 = 54,328.50 : x
2. Step 2: Convert to fraction form
   40,624.50/54,328.50 = 54,328.50/x
3. Step 3: Cross multiply
   40,624.50x = 54,328.50 × 54,328.50
4. Step 4: Simplify right side
   40,624.50x = 2,951,585,912.25
5. Step 5: Solve for x
   x = 2,951,585,912.25/40,624.50
6. Step 6: Final answer
   x = 72,655.32