Finding the Third Proportional to 2,157,822 and 4,722,021

Step by Step Solution

1. Step 1: Write the proportion equation
   2,157,822 : 4,722,021 = 4,722,021 : x
2. Step 2: Convert to fraction form
   2,157,822/4,722,021 = 4,722,021/x
3. Step 3: Cross multiply
   2,157,822x = 4,722,021 × 4,722,021
4. Step 4: Simplify right side
   2,157,822x = 22,297,482,324,441
5. Step 5: Solve for x
   x = 22,297,482,324,441/2,157,822
6. Step 6: Final answer
   x = 10,333,327.92