Finding the Third Proportional to 60,561.50 and 123,578

Step by Step Solution

1. Step 1: Write the proportion equation
   60,561.50 : 123,578 = 123,578 : x
2. Step 2: Convert to fraction form
   60,561.50/123,578 = 123,578/x
3. Step 3: Cross multiply
   60,561.50x = 123,578 × 123,578
4. Step 4: Simplify right side
   60,561.50x = 15,271,522,084
5. Step 5: Solve for x
   x = 15,271,522,084/60,561.50
6. Step 6: Final answer
   x = 252,165.52