Finding the Third Proportional to 665,438 and 1,442,976

Step by Step Solution

1. Step 1: Write the proportion equation
   665,438 : 1,442,976 = 1,442,976 : x
2. Step 2: Convert to fraction form
   665,438/1,442,976 = 1,442,976/x
3. Step 3: Cross multiply
   665,438x = 1,442,976 × 1,442,976
4. Step 4: Simplify right side
   665,438x = 2,082,179,736,576
5. Step 5: Solve for x
   x = 2,082,179,736,576/665,438
6. Step 6: Final answer
   x = 3,129,036.42