Finding the Third Proportional to 2,020,666 and 4,489,738

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020,666 : 4,489,738 = 4,489,738 : x
2. Step 2: Convert to fraction form
   2,020,666/4,489,738 = 4,489,738/x
3. Step 3: Cross multiply
   2,020,666x = 4,489,738 × 4,489,738
4. Step 4: Simplify right side
   2,020,666x = 20,157,747,308,644
5. Step 5: Solve for x
   x = 20,157,747,308,644/2,020,666
6. Step 6: Final answer
   x = 9,975,793.78