Finding the Third Proportional to 17,150 and 18,770

Step by Step Solution

1. Step 1: Write the proportion equation
   17,150 : 18,770 = 18,770 : x
2. Step 2: Convert to fraction form
   17,150/18,770 = 18,770/x
3. Step 3: Cross multiply
   17,150x = 18,770 × 18,770
4. Step 4: Simplify right side
   17,150x = 352,312,900
5. Step 5: Solve for x
   x = 352,312,900/17,150
6. Step 6: Final answer
   x = 20,543.03