Finding the Third Proportional to 17,034 and 18,690

Step by Step Solution

1. Step 1: Write the proportion equation
   17,034 : 18,690 = 18,690 : x
2. Step 2: Convert to fraction form
   17,034/18,690 = 18,690/x
3. Step 3: Cross multiply
   17,034x = 18,690 × 18,690
4. Step 4: Simplify right side
   17,034x = 349,316,100
5. Step 5: Solve for x
   x = 349,316,100/17,034
6. Step 6: Final answer
   x = 20,506.99