Finding the Third Proportional to 15,256 and 17,488

Step by Step Solution

1. Step 1: Write the proportion equation
   15,256 : 17,488 = 17,488 : x
2. Step 2: Convert to fraction form
   15,256/17,488 = 17,488/x
3. Step 3: Cross multiply
   15,256x = 17,488 × 17,488
4. Step 4: Simplify right side
   15,256x = 305,830,144
5. Step 5: Solve for x
   x = 305,830,144/15,256
6. Step 6: Final answer
   x = 20,046.55