Finding the Third Proportional to 17,178 and 18,834

Step by Step Solution

1. Step 1: Write the proportion equation
   17,178 : 18,834 = 18,834 : x
2. Step 2: Convert to fraction form
   17,178/18,834 = 18,834/x
3. Step 3: Cross multiply
   17,178x = 18,834 × 18,834
4. Step 4: Simplify right side
   17,178x = 354,719,556
5. Step 5: Solve for x
   x = 354,719,556/17,178
6. Step 6: Final answer
   x = 20,649.64