Finding the Third Proportional to 406.27 and 879.61

Step by Step Solution

1. Step 1: Write the proportion equation
   406.27 : 879.61 = 879.61 : x
2. Step 2: Convert to fraction form
   406.27/879.61 = 879.61/x
3. Step 3: Cross multiply
   406.27x = 879.61 × 879.61
4. Step 4: Simplify right side
   406.27x = 773,712.65
5. Step 5: Solve for x
   x = 773,712.65/406.27
6. Step 6: Final answer
   x = 1,904.45