Finding the Third Proportional to 16,368 and 18,042

Step by Step Solution

1. Step 1: Write the proportion equation
   16,368 : 18,042 = 18,042 : x
2. Step 2: Convert to fraction form
   16,368/18,042 = 18,042/x
3. Step 3: Cross multiply
   16,368x = 18,042 × 18,042
4. Step 4: Simplify right side
   16,368x = 325,513,764
5. Step 5: Solve for x
   x = 325,513,764/16,368
6. Step 6: Final answer
   x = 19,887.20