Finding the Third Proportional to 55,024.31 and 72,679.78

Step by Step Solution

1. Step 1: Write the proportion equation
   55,024.31 : 72,679.78 = 72,679.78 : x
2. Step 2: Convert to fraction form
   55,024.31/72,679.78 = 72,679.78/x
3. Step 3: Cross multiply
   55,024.31x = 72,679.78 × 72,679.78
4. Step 4: Simplify right side
   55,024.31x = 5,282,350,602.55
5. Step 5: Solve for x
   x = 5,282,350,602.55/55,024.31
6. Step 6: Final answer
   x = 96,000.30