Finding the Third Proportional to 441.38 and 649.31

Step by Step Solution

1. Step 1: Write the proportion equation
   441.38 : 649.31 = 649.31 : x
2. Step 2: Convert to fraction form
   441.38/649.31 = 649.31/x
3. Step 3: Cross multiply
   441.38x = 649.31 × 649.31
4. Step 4: Simplify right side
   441.38x = 421,606.72
5. Step 5: Solve for x
   x = 421,606.72/441.38
6. Step 6: Final answer
   x = 955.21