Finding the Third Proportional to 60,518 and 140,628

Step by Step Solution

1. Step 1: Write the proportion equation
   60,518 : 140,628 = 140,628 : x
2. Step 2: Convert to fraction form
   60,518/140,628 = 140,628/x
3. Step 3: Cross multiply
   60,518x = 140,628 × 140,628
4. Step 4: Simplify right side
   60,518x = 19,776,234,384
5. Step 5: Solve for x
   x = 19,776,234,384/60,518
6. Step 6: Final answer
   x = 326,782.68