Finding the Third Proportional to 40,216.50 and 56,710.13

Step by Step Solution

1. Step 1: Write the proportion equation
   40,216.50 : 56,710.13 = 56,710.13 : x
2. Step 2: Convert to fraction form
   40,216.50/56,710.13 = 56,710.13/x
3. Step 3: Cross multiply
   40,216.50x = 56,710.13 × 56,710.13
4. Step 4: Simplify right side
   40,216.50x = 3,216,038,277.52
5. Step 5: Solve for x
   x = 3,216,038,277.52/40,216.50
6. Step 6: Final answer
   x = 79,968.13