Finding the Third Proportional to 54,067.50 and 80,812.69

Step by Step Solution

1. Step 1: Write the proportion equation
   54,067.50 : 80,812.69 = 80,812.69 : x
2. Step 2: Convert to fraction form
   54,067.50/80,812.69 = 80,812.69/x
3. Step 3: Cross multiply
   54,067.50x = 80,812.69 × 80,812.69
4. Step 4: Simplify right side
   54,067.50x = 6,530,690,460.97
5. Step 5: Solve for x
   x = 6,530,690,460.97/54,067.50
6. Step 6: Final answer
   x = 120,787.73