Finding the Third Proportional to 16,456 and 17,860

Step by Step Solution

1. Step 1: Write the proportion equation
   16,456 : 17,860 = 17,860 : x
2. Step 2: Convert to fraction form
   16,456/17,860 = 17,860/x
3. Step 3: Cross multiply
   16,456x = 17,860 × 17,860
4. Step 4: Simplify right side
   16,456x = 318,979,600
5. Step 5: Solve for x
   x = 318,979,600/16,456
6. Step 6: Final answer
   x = 19,383.79