Finding the Third Proportional to 2,722,179 and 4,178,437

Step by Step Solution

1. Step 1: Write the proportion equation
   2,722,179 : 4,178,437 = 4,178,437 : x
2. Step 2: Convert to fraction form
   2,722,179/4,178,437 = 4,178,437/x
3. Step 3: Cross multiply
   2,722,179x = 4,178,437 × 4,178,437
4. Step 4: Simplify right side
   2,722,179x = 17,459,335,762,969
5. Step 5: Solve for x
   x = 17,459,335,762,969/2,722,179
6. Step 6: Final answer
   x = 6,413,735.38