Finding the Third Proportional to 59,501.25 and 91,138.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,501.25 : 91,138.50 = 91,138.50 : x
2. Step 2: Convert to fraction form
   59,501.25/91,138.50 = 91,138.50/x
3. Step 3: Cross multiply
   59,501.25x = 91,138.50 × 91,138.50
4. Step 4: Simplify right side
   59,501.25x = 8,306,226,182.25
5. Step 5: Solve for x
   x = 8,306,226,182.25/59,501.25
6. Step 6: Final answer
   x = 139,597.51