Finding the Third Proportional to 54,772.88 and 69,765.75

Step by Step Solution

1. Step 1: Write the proportion equation
   54,772.88 : 69,765.75 = 69,765.75 : x
2. Step 2: Convert to fraction form
   54,772.88/69,765.75 = 69,765.75/x
3. Step 3: Cross multiply
   54,772.88x = 69,765.75 × 69,765.75
4. Step 4: Simplify right side
   54,772.88x = 4,867,259,873.06
5. Step 5: Solve for x
   x = 4,867,259,873.06/54,772.88
6. Step 6: Final answer
   x = 88,862.60