Finding the Third Proportional to 2,689.50 and 5,451

Step by Step Solution

1. Step 1: Write the proportion equation
   2,689.50 : 5,451 = 5,451 : x
2. Step 2: Convert to fraction form
   2,689.50/5,451 = 5,451/x
3. Step 3: Cross multiply
   2,689.50x = 5,451 × 5,451
4. Step 4: Simplify right side
   2,689.50x = 29,713,401
5. Step 5: Solve for x
   x = 29,713,401/2,689.50
6. Step 6: Final answer
   x = 11,047.93