Finding the Third Proportional to 54,079.50 and 72,340.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,079.50 : 72,340.50 = 72,340.50 : x
2. Step 2: Convert to fraction form
   54,079.50/72,340.50 = 72,340.50/x
3. Step 3: Cross multiply
   54,079.50x = 72,340.50 × 72,340.50
4. Step 4: Simplify right side
   54,079.50x = 5,233,147,940.25
5. Step 5: Solve for x
   x = 5,233,147,940.25/54,079.50
6. Step 6: Final answer
   x = 96,767.68