Finding the Third Proportional to 11,518 and 18,042

Step by Step Solution

1. Step 1: Write the proportion equation
   11,518 : 18,042 = 18,042 : x
2. Step 2: Convert to fraction form
   11,518/18,042 = 18,042/x
3. Step 3: Cross multiply
   11,518x = 18,042 × 18,042
4. Step 4: Simplify right side
   11,518x = 325,513,764
5. Step 5: Solve for x
   x = 325,513,764/11,518
6. Step 6: Final answer
   x = 28,261.31