Finding the Third Proportional to 2,211,021 and 4,687,749

Step by Step Solution

1. Step 1: Write the proportion equation
   2,211,021 : 4,687,749 = 4,687,749 : x
2. Step 2: Convert to fraction form
   2,211,021/4,687,749 = 4,687,749/x
3. Step 3: Cross multiply
   2,211,021x = 4,687,749 × 4,687,749
4. Step 4: Simplify right side
   2,211,021x = 21,974,990,687,001
5. Step 5: Solve for x
   x = 21,974,990,687,001/2,211,021
6. Step 6: Final answer
   x = 9,938,843.04