Finding the Third Proportional to 11,080 and 17,860

Step by Step Solution

1. Step 1: Write the proportion equation
   11,080 : 17,860 = 17,860 : x
2. Step 2: Convert to fraction form
   11,080/17,860 = 17,860/x
3. Step 3: Cross multiply
   11,080x = 17,860 × 17,860
4. Step 4: Simplify right side
   11,080x = 318,979,600
5. Step 5: Solve for x
   x = 318,979,600/11,080
6. Step 6: Final answer
   x = 28,788.77