Finding the Third Proportional to 11,290 and 18,042

Step by Step Solution

1. Step 1: Write the proportion equation
   11,290 : 18,042 = 18,042 : x
2. Step 2: Convert to fraction form
   11,290/18,042 = 18,042/x
3. Step 3: Cross multiply
   11,290x = 18,042 × 18,042
4. Step 4: Simplify right side
   11,290x = 325,513,764
5. Step 5: Solve for x
   x = 325,513,764/11,290
6. Step 6: Final answer
   x = 28,832.04