Finding the Third Proportional to 15,860 and 17,300

Step by Step Solution

1. Step 1: Write the proportion equation
   15,860 : 17,300 = 17,300 : x
2. Step 2: Convert to fraction form
   15,860/17,300 = 17,300/x
3. Step 3: Cross multiply
   15,860x = 17,300 × 17,300
4. Step 4: Simplify right side
   15,860x = 299,290,000
5. Step 5: Solve for x
   x = 299,290,000/15,860
6. Step 6: Final answer
   x = 18,870.74