Finding the Third Proportional to 2,019,978 and 4,420,060

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019,978 : 4,420,060 = 4,420,060 : x
2. Step 2: Convert to fraction form
   2,019,978/4,420,060 = 4,420,060/x
3. Step 3: Cross multiply
   2,019,978x = 4,420,060 × 4,420,060
4. Step 4: Simplify right side
   2,019,978x = 19,536,930,403,600
5. Step 5: Solve for x
   x = 19,536,930,403,600/2,019,978
6. Step 6: Final answer
   x = 9,671,853.06