Finding the Third Proportional to 2,490 and 5,482

Step by Step Solution

1. Step 1: Write the proportion equation
   2,490 : 5,482 = 5,482 : x
2. Step 2: Convert to fraction form
   2,490/5,482 = 5,482/x
3. Step 3: Cross multiply
   2,490x = 5,482 × 5,482
4. Step 4: Simplify right side
   2,490x = 30,052,324
5. Step 5: Solve for x
   x = 30,052,324/2,490
6. Step 6: Final answer
   x = 12,069.21