Finding the Third Proportional to 15,105 and 17,883

Step by Step Solution

1. Step 1: Write the proportion equation
   15,105 : 17,883 = 17,883 : x
2. Step 2: Convert to fraction form
   15,105/17,883 = 17,883/x
3. Step 3: Cross multiply
   15,105x = 17,883 × 17,883
4. Step 4: Simplify right side
   15,105x = 319,801,689
5. Step 5: Solve for x
   x = 319,801,689/15,105
6. Step 6: Final answer
   x = 21,171.91