Finding the Third Proportional to 60,800 and 85,560

Step by Step Solution

1. Step 1: Write the proportion equation
   60,800 : 85,560 = 85,560 : x
2. Step 2: Convert to fraction form
   60,800/85,560 = 85,560/x
3. Step 3: Cross multiply
   60,800x = 85,560 × 85,560
4. Step 4: Simplify right side
   60,800x = 7,320,513,600
5. Step 5: Solve for x
   x = 7,320,513,600/60,800
6. Step 6: Final answer
   x = 120,403.18