Finding the Third Proportional to 19,657.69 and 28,879.03

Step by Step Solution

1. Step 1: Write the proportion equation
   19,657.69 : 28,879.03 = 28,879.03 : x
2. Step 2: Convert to fraction form
   19,657.69/28,879.03 = 28,879.03/x
3. Step 3: Cross multiply
   19,657.69x = 28,879.03 × 28,879.03
4. Step 4: Simplify right side
   19,657.69x = 833,998,445.94
5. Step 5: Solve for x
   x = 833,998,445.94/19,657.69
6. Step 6: Final answer
   x = 42,426.07