Finding the Third Proportional to 54,178.50 and 71,908.13

Step by Step Solution

1. Step 1: Write the proportion equation
   54,178.50 : 71,908.13 = 71,908.13 : x
2. Step 2: Convert to fraction form
   54,178.50/71,908.13 = 71,908.13/x
3. Step 3: Cross multiply
   54,178.50x = 71,908.13 × 71,908.13
4. Step 4: Simplify right side
   54,178.50x = 5,170,778,441.02
5. Step 5: Solve for x
   x = 5,170,778,441.02/54,178.50
6. Step 6: Final answer
   x = 95,439.68