Finding the Third Proportional to 40,234.50 and 54,643.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,234.50 : 54,643.50 = 54,643.50 : x
2. Step 2: Convert to fraction form
   40,234.50/54,643.50 = 54,643.50/x
3. Step 3: Cross multiply
   40,234.50x = 54,643.50 × 54,643.50
4. Step 4: Simplify right side
   40,234.50x = 2,985,912,092.25
5. Step 5: Solve for x
   x = 2,985,912,092.25/40,234.50
6. Step 6: Final answer
   x = 74,212.73