Finding the Third Proportional to 2,021,724 and 4,397,666

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021,724 : 4,397,666 = 4,397,666 : x
2. Step 2: Convert to fraction form
   2,021,724/4,397,666 = 4,397,666/x
3. Step 3: Cross multiply
   2,021,724x = 4,397,666 × 4,397,666
4. Step 4: Simplify right side
   2,021,724x = 19,339,466,247,556
5. Step 5: Solve for x
   x = 19,339,466,247,556/2,021,724
6. Step 6: Final answer
   x = 9,565,829.09