Finding the Third Proportional to 2,021,811 and 4,397,895

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021,811 : 4,397,895 = 4,397,895 : x
2. Step 2: Convert to fraction form
   2,021,811/4,397,895 = 4,397,895/x
3. Step 3: Cross multiply
   2,021,811x = 4,397,895 × 4,397,895
4. Step 4: Simplify right side
   2,021,811x = 19,341,480,431,025
5. Step 5: Solve for x
   x = 19,341,480,431,025/2,021,811
6. Step 6: Final answer
   x = 9,566,413.69