Finding the Third Proportional to 40,728.50 and 59,635.75

Step by Step Solution

1. Step 1: Write the proportion equation
   40,728.50 : 59,635.75 = 59,635.75 : x
2. Step 2: Convert to fraction form
   40,728.50/59,635.75 = 59,635.75/x
3. Step 3: Cross multiply
   40,728.50x = 59,635.75 × 59,635.75
4. Step 4: Simplify right side
   40,728.50x = 3,556,422,678.06
5. Step 5: Solve for x
   x = 3,556,422,678.06/40,728.50
6. Step 6: Final answer
   x = 87,320.25