Finding the Third Proportional to 665,444 and 1,442,988

Step by Step Solution

1. Step 1: Write the proportion equation
   665,444 : 1,442,988 = 1,442,988 : x
2. Step 2: Convert to fraction form
   665,444/1,442,988 = 1,442,988/x
3. Step 3: Cross multiply
   665,444x = 1,442,988 × 1,442,988
4. Step 4: Simplify right side
   665,444x = 2,082,214,368,144
5. Step 5: Solve for x
   x = 2,082,214,368,144/665,444
6. Step 6: Final answer
   x = 3,129,060.25