Finding the Third Proportional to 11,122 and 17,242

Step by Step Solution

1. Step 1: Write the proportion equation
   11,122 : 17,242 = 17,242 : x
2. Step 2: Convert to fraction form
   11,122/17,242 = 17,242/x
3. Step 3: Cross multiply
   11,122x = 17,242 × 17,242
4. Step 4: Simplify right side
   11,122x = 297,286,564
5. Step 5: Solve for x
   x = 297,286,564/11,122
6. Step 6: Final answer
   x = 26,729.60