Finding the Third Proportional to 2,521 and 5,528

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521 : 5,528 = 5,528 : x
2. Step 2: Convert to fraction form
   2,521/5,528 = 5,528/x
3. Step 3: Cross multiply
   2,521x = 5,528 × 5,528
4. Step 4: Simplify right side
   2,521x = 30,558,784
5. Step 5: Solve for x
   x = 30,558,784/2,521
6. Step 6: Final answer
   x = 12,121.69