Finding the Third Proportional to 2,872,491 and 4,368,420

Step by Step Solution

1. Step 1: Write the proportion equation
   2,872,491 : 4,368,420 = 4,368,420 : x
2. Step 2: Convert to fraction form
   2,872,491/4,368,420 = 4,368,420/x
3. Step 3: Cross multiply
   2,872,491x = 4,368,420 × 4,368,420
4. Step 4: Simplify right side
   2,872,491x = 19,083,093,296,400
5. Step 5: Solve for x
   x = 19,083,093,296,400/2,872,491
6. Step 6: Final answer
   x = 6,643,395.33