Finding the Third Proportional to 54,871.50 and 80,216.25

Step by Step Solution

1. Step 1: Write the proportion equation
   54,871.50 : 80,216.25 = 80,216.25 : x
2. Step 2: Convert to fraction form
   54,871.50/80,216.25 = 80,216.25/x
3. Step 3: Cross multiply
   54,871.50x = 80,216.25 × 80,216.25
4. Step 4: Simplify right side
   54,871.50x = 6,434,646,764.06
5. Step 5: Solve for x
   x = 6,434,646,764.06/54,871.50
6. Step 6: Final answer
   x = 117,267.56