Finding the Third Proportional to 11,402 and 12,482

Step by Step Solution

1. Step 1: Write the proportion equation
   11,402 : 12,482 = 12,482 : x
2. Step 2: Convert to fraction form
   11,402/12,482 = 12,482/x
3. Step 3: Cross multiply
   11,402x = 12,482 × 12,482
4. Step 4: Simplify right side
   11,402x = 155,800,324
5. Step 5: Solve for x
   x = 155,800,324/11,402
6. Step 6: Final answer
   x = 13,664.30