Finding the Third Proportional to 3,658.50 and 5,520.75

Step by Step Solution

1. Step 1: Write the proportion equation
   3,658.50 : 5,520.75 = 5,520.75 : x
2. Step 2: Convert to fraction form
   3,658.50/5,520.75 = 5,520.75/x
3. Step 3: Cross multiply
   3,658.50x = 5,520.75 × 5,520.75
4. Step 4: Simplify right side
   3,658.50x = 30,478,680.56
5. Step 5: Solve for x
   x = 30,478,680.56/3,658.50
6. Step 6: Final answer
   x = 8,330.92