Finding the Third Proportional to 619,852 and 1,357,638

Step by Step Solution

1. Step 1: Write the proportion equation
   619,852 : 1,357,638 = 1,357,638 : x
2. Step 2: Convert to fraction form
   619,852/1,357,638 = 1,357,638/x
3. Step 3: Cross multiply
   619,852x = 1,357,638 × 1,357,638
4. Step 4: Simplify right side
   619,852x = 1,843,180,939,044
5. Step 5: Solve for x
   x = 1,843,180,939,044/619,852
6. Step 6: Final answer
   x = 2,973,582.31