Finding the Third Proportional to 2,521.50 and 5,289

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.50 : 5,289 = 5,289 : x
2. Step 2: Convert to fraction form
   2,521.50/5,289 = 5,289/x
3. Step 3: Cross multiply
   2,521.50x = 5,289 × 5,289
4. Step 4: Simplify right side
   2,521.50x = 27,973,521
5. Step 5: Solve for x
   x = 27,973,521/2,521.50
6. Step 6: Final answer
   x = 11,094