Finding the Third Proportional to 54,538.88 and 80,012.81

Step by Step Solution

1. Step 1: Write the proportion equation
   54,538.88 : 80,012.81 = 80,012.81 : x
2. Step 2: Convert to fraction form
   54,538.88/80,012.81 = 80,012.81/x
3. Step 3: Cross multiply
   54,538.88x = 80,012.81 × 80,012.81
4. Step 4: Simplify right side
   54,538.88x = 6,402,050,164.16
5. Step 5: Solve for x
   x = 6,402,050,164.16/54,538.88
6. Step 6: Final answer
   x = 117,385.08