Finding the Third Proportional to 618,348 and 1,431,582

Step by Step Solution

1. Step 1: Write the proportion equation
   618,348 : 1,431,582 = 1,431,582 : x
2. Step 2: Convert to fraction form
   618,348/1,431,582 = 1,431,582/x
3. Step 3: Cross multiply
   618,348x = 1,431,582 × 1,431,582
4. Step 4: Simplify right side
   618,348x = 2,049,427,022,724
5. Step 5: Solve for x
   x = 2,049,427,022,724/618,348
6. Step 6: Final answer
   x = 3,314,358.62