Finding the Third Proportional to 59,605.50 and 90,015.75

Step by Step Solution

1. Step 1: Write the proportion equation
   59,605.50 : 90,015.75 = 90,015.75 : x
2. Step 2: Convert to fraction form
   59,605.50/90,015.75 = 90,015.75/x
3. Step 3: Cross multiply
   59,605.50x = 90,015.75 × 90,015.75
4. Step 4: Simplify right side
   59,605.50x = 8,102,835,248.06
5. Step 5: Solve for x
   x = 8,102,835,248.06/59,605.50
6. Step 6: Final answer
   x = 135,941.07