Finding the Third Proportional to 1,555,284 and 2,539,638

Step by Step Solution

1. Step 1: Write the proportion equation
   1,555,284 : 2,539,638 = 2,539,638 : x
2. Step 2: Convert to fraction form
   1,555,284/2,539,638 = 2,539,638/x
3. Step 3: Cross multiply
   1,555,284x = 2,539,638 × 2,539,638
4. Step 4: Simplify right side
   1,555,284x = 6,449,761,171,044
5. Step 5: Solve for x
   x = 6,449,761,171,044/1,555,284
6. Step 6: Final answer
   x = 4,146,998.99