Finding the Third Proportional to 408.38 and 867.38

Step by Step Solution

1. Step 1: Write the proportion equation
   408.38 : 867.38 = 867.38 : x
2. Step 2: Convert to fraction form
   408.38/867.38 = 867.38/x
3. Step 3: Cross multiply
   408.38x = 867.38 × 867.38
4. Step 4: Simplify right side
   408.38x = 752,339.39
5. Step 5: Solve for x
   x = 752,339.39/408.38
6. Step 6: Final answer
   x = 1,842.28