Finding the Third Proportional to 15,380 and 17,648

Step by Step Solution

1. Step 1: Write the proportion equation
   15,380 : 17,648 = 17,648 : x
2. Step 2: Convert to fraction form
   15,380/17,648 = 17,648/x
3. Step 3: Cross multiply
   15,380x = 17,648 × 17,648
4. Step 4: Simplify right side
   15,380x = 311,451,904
5. Step 5: Solve for x
   x = 311,451,904/15,380
6. Step 6: Final answer
   x = 20,250.45