Finding the Third Proportional to 2,199,775 and 3,220,912

Step by Step Solution

1. Step 1: Write the proportion equation
   2,199,775 : 3,220,912 = 3,220,912 : x
2. Step 2: Convert to fraction form
   2,199,775/3,220,912 = 3,220,912/x
3. Step 3: Cross multiply
   2,199,775x = 3,220,912 × 3,220,912
4. Step 4: Simplify right side
   2,199,775x = 10,374,274,111,744
5. Step 5: Solve for x
   x = 10,374,274,111,744/2,199,775
6. Step 6: Final answer
   x = 4,716,061.47