Finding the Third Proportional to 59,137.88 and 91,815.75

Step by Step Solution

1. Step 1: Write the proportion equation
   59,137.88 : 91,815.75 = 91,815.75 : x
2. Step 2: Convert to fraction form
   59,137.88/91,815.75 = 91,815.75/x
3. Step 3: Cross multiply
   59,137.88x = 91,815.75 × 91,815.75
4. Step 4: Simplify right side
   59,137.88x = 8,430,131,948.06
5. Step 5: Solve for x
   x = 8,430,131,948.06/59,137.88
6. Step 6: Final answer
   x = 142,550.47