Finding the Third Proportional to 2,404.50 and 5,220

Step by Step Solution

1. Step 1: Write the proportion equation
   2,404.50 : 5,220 = 5,220 : x
2. Step 2: Convert to fraction form
   2,404.50/5,220 = 5,220/x
3. Step 3: Cross multiply
   2,404.50x = 5,220 × 5,220
4. Step 4: Simplify right side
   2,404.50x = 27,248,400
5. Step 5: Solve for x
   x = 27,248,400/2,404.50
6. Step 6: Final answer
   x = 11,332.25