Finding the Third Proportional to 3,668.50 and 5,520.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,668.50 : 5,520.50 = 5,520.50 : x
2. Step 2: Convert to fraction form
   3,668.50/5,520.50 = 5,520.50/x
3. Step 3: Cross multiply
   3,668.50x = 5,520.50 × 5,520.50
4. Step 4: Simplify right side
   3,668.50x = 30,475,920.25
5. Step 5: Solve for x
   x = 30,475,920.25/3,668.50
6. Step 6: Final answer
   x = 8,307.46