Finding the Third Proportional to 190,726.50 and 406,779

Step by Step Solution

1. Step 1: Write the proportion equation
   190,726.50 : 406,779 = 406,779 : x
2. Step 2: Convert to fraction form
   190,726.50/406,779 = 406,779/x
3. Step 3: Cross multiply
   190,726.50x = 406,779 × 406,779
4. Step 4: Simplify right side
   190,726.50x = 165,469,154,841
5. Step 5: Solve for x
   x = 165,469,154,841/190,726.50
6. Step 6: Final answer
   x = 867,572.96