Finding the Third Proportional to 1,432,638 and 2,167,398

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432,638 : 2,167,398 = 2,167,398 : x
2. Step 2: Convert to fraction form
   1,432,638/2,167,398 = 2,167,398/x
3. Step 3: Cross multiply
   1,432,638x = 2,167,398 × 2,167,398
4. Step 4: Simplify right side
   1,432,638x = 4,697,614,090,404
5. Step 5: Solve for x
   x = 4,697,614,090,404/1,432,638
6. Step 6: Final answer
   x = 3,278,995.87