Finding the Third Proportional to 16,486 and 18,061

Step by Step Solution

1. Step 1: Write the proportion equation
   16,486 : 18,061 = 18,061 : x
2. Step 2: Convert to fraction form
   16,486/18,061 = 18,061/x
3. Step 3: Cross multiply
   16,486x = 18,061 × 18,061
4. Step 4: Simplify right side
   16,486x = 326,199,721
5. Step 5: Solve for x
   x = 326,199,721/16,486
6. Step 6: Final answer
   x = 19,786.47