Finding the Third Proportional to 54,016.88 and 81,770.63

Step by Step Solution

1. Step 1: Write the proportion equation
   54,016.88 : 81,770.63 = 81,770.63 : x
2. Step 2: Convert to fraction form
   54,016.88/81,770.63 = 81,770.63/x
3. Step 3: Cross multiply
   54,016.88x = 81,770.63 × 81,770.63
4. Step 4: Simplify right side
   54,016.88x = 6,686,435,112.89
5. Step 5: Solve for x
   x = 6,686,435,112.89/54,016.88
6. Step 6: Final answer
   x = 123,784.19