Finding the Third Proportional to 2,001,978 and 4,145,969

Step by Step Solution

1. Step 1: Write the proportion equation
   2,001,978 : 4,145,969 = 4,145,969 : x
2. Step 2: Convert to fraction form
   2,001,978/4,145,969 = 4,145,969/x
3. Step 3: Cross multiply
   2,001,978x = 4,145,969 × 4,145,969
4. Step 4: Simplify right side
   2,001,978x = 17,189,058,948,961
5. Step 5: Solve for x
   x = 17,189,058,948,961/2,001,978
6. Step 6: Final answer
   x = 8,586,037.88