Finding the Third Proportional to 54,062.25 and 86,089.88

Step by Step Solution

1. Step 1: Write the proportion equation
   54,062.25 : 86,089.88 = 86,089.88 : x
2. Step 2: Convert to fraction form
   54,062.25/86,089.88 = 86,089.88/x
3. Step 3: Cross multiply
   54,062.25x = 86,089.88 × 86,089.88
4. Step 4: Simplify right side
   54,062.25x = 7,411,466,577.52
5. Step 5: Solve for x
   x = 7,411,466,577.52/54,062.25
6. Step 6: Final answer
   x = 137,091.35