Finding the Third Proportional to 2,205,990 and 3,539,337

Step by Step Solution

1. Step 1: Write the proportion equation
   2,205,990 : 3,539,337 = 3,539,337 : x
2. Step 2: Convert to fraction form
   2,205,990/3,539,337 = 3,539,337/x
3. Step 3: Cross multiply
   2,205,990x = 3,539,337 × 3,539,337
4. Step 4: Simplify right side
   2,205,990x = 12,526,906,399,569
5. Step 5: Solve for x
   x = 12,526,906,399,569/2,205,990
6. Step 6: Final answer
   x = 5,678,587.12