Finding the Third Proportional to 1,355,428 and 2,850,638

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355,428 : 2,850,638 = 2,850,638 : x
2. Step 2: Convert to fraction form
   1,355,428/2,850,638 = 2,850,638/x
3. Step 3: Cross multiply
   1,355,428x = 2,850,638 × 2,850,638
4. Step 4: Simplify right side
   1,355,428x = 8,126,137,007,044
5. Step 5: Solve for x
   x = 8,126,137,007,044/1,355,428
6. Step 6: Final answer
   x = 5,995,255.38