Finding the Third Proportional to 59,199.75 and 90,562.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,199.75 : 90,562.50 = 90,562.50 : x
2. Step 2: Convert to fraction form
   59,199.75/90,562.50 = 90,562.50/x
3. Step 3: Cross multiply
   59,199.75x = 90,562.50 × 90,562.50
4. Step 4: Simplify right side
   59,199.75x = 8,201,566,406.25
5. Step 5: Solve for x
   x = 8,201,566,406.25/59,199.75
6. Step 6: Final answer
   x = 138,540.56