Finding the Third Proportional to 665,430 and 1,442,962

Step by Step Solution

1. Step 1: Write the proportion equation
   665,430 : 1,442,962 = 1,442,962 : x
2. Step 2: Convert to fraction form
   665,430/1,442,962 = 1,442,962/x
3. Step 3: Cross multiply
   665,430x = 1,442,962 × 1,442,962
4. Step 4: Simplify right side
   665,430x = 2,082,139,333,444
5. Step 5: Solve for x
   x = 2,082,139,333,444/665,430
6. Step 6: Final answer
   x = 3,129,013.32