Finding the Third Proportional to 2,722,212 and 4,178,484

Step by Step Solution

1. Step 1: Write the proportion equation
   2,722,212 : 4,178,484 = 4,178,484 : x
2. Step 2: Convert to fraction form
   2,722,212/4,178,484 = 4,178,484/x
3. Step 3: Cross multiply
   2,722,212x = 4,178,484 × 4,178,484
4. Step 4: Simplify right side
   2,722,212x = 17,459,728,538,256
5. Step 5: Solve for x
   x = 17,459,728,538,256/2,722,212
6. Step 6: Final answer
   x = 6,413,801.91