Finding the Third Proportional to 59,135.25 and 91,739.75

Step by Step Solution

1. Step 1: Write the proportion equation
   59,135.25 : 91,739.75 = 91,739.75 : x
2. Step 2: Convert to fraction form
   59,135.25/91,739.75 = 91,739.75/x
3. Step 3: Cross multiply
   59,135.25x = 91,739.75 × 91,739.75
4. Step 4: Simplify right side
   59,135.25x = 8,416,181,730.06
5. Step 5: Solve for x
   x = 8,416,181,730.06/59,135.25
6. Step 6: Final answer
   x = 142,320.90