Finding the Third Proportional to 11,402 and 15,492

Step by Step Solution

1. Step 1: Write the proportion equation
   11,402 : 15,492 = 15,492 : x
2. Step 2: Convert to fraction form
   11,402/15,492 = 15,492/x
3. Step 3: Cross multiply
   11,402x = 15,492 × 15,492
4. Step 4: Simplify right side
   11,402x = 240,002,064
5. Step 5: Solve for x
   x = 240,002,064/11,402
6. Step 6: Final answer
   x = 21,049.12