Finding the Third Proportional to 11,160 and 17,800

Step by Step Solution

1. Step 1: Write the proportion equation
   11,160 : 17,800 = 17,800 : x
2. Step 2: Convert to fraction form
   11,160/17,800 = 17,800/x
3. Step 3: Cross multiply
   11,160x = 17,800 × 17,800
4. Step 4: Simplify right side
   11,160x = 316,840,000
5. Step 5: Solve for x
   x = 316,840,000/11,160
6. Step 6: Final answer
   x = 28,390.68