Finding the Third Proportional to 2,518 and 5,328.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,518 : 5,328.50 = 5,328.50 : x
2. Step 2: Convert to fraction form
   2,518/5,328.50 = 5,328.50/x
3. Step 3: Cross multiply
   2,518x = 5,328.50 × 5,328.50
4. Step 4: Simplify right side
   2,518x = 28,392,912.25
5. Step 5: Solve for x
   x = 28,392,912.25/2,518
6. Step 6: Final answer
   x = 11,275.98