Finding the Third Proportional to 54,423 and 72,445.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,423 : 72,445.50 = 72,445.50 : x
2. Step 2: Convert to fraction form
   54,423/72,445.50 = 72,445.50/x
3. Step 3: Cross multiply
   54,423x = 72,445.50 × 72,445.50
4. Step 4: Simplify right side
   54,423x = 5,248,350,470.25
5. Step 5: Solve for x
   x = 5,248,350,470.25/54,423
6. Step 6: Final answer
   x = 96,436.26