Finding the Third Proportional to 54,259.88 and 84,862.69

Step by Step Solution

1. Step 1: Write the proportion equation
   54,259.88 : 84,862.69 = 84,862.69 : x
2. Step 2: Convert to fraction form
   54,259.88/84,862.69 = 84,862.69/x
3. Step 3: Cross multiply
   54,259.88x = 84,862.69 × 84,862.69
4. Step 4: Simplify right side
   54,259.88x = 7,201,675,729.72
5. Step 5: Solve for x
   x = 7,201,675,729.72/54,259.88
6. Step 6: Final answer
   x = 132,725.62