Finding the Third Proportional to 2,872,486 and 4,368,412

Step by Step Solution

1. Step 1: Write the proportion equation
   2,872,486 : 4,368,412 = 4,368,412 : x
2. Step 2: Convert to fraction form
   2,872,486/4,368,412 = 4,368,412/x
3. Step 3: Cross multiply
   2,872,486x = 4,368,412 × 4,368,412
4. Step 4: Simplify right side
   2,872,486x = 19,083,023,401,744
5. Step 5: Solve for x
   x = 19,083,023,401,744/2,872,486
6. Step 6: Final answer
   x = 6,643,382.56