Finding the Third Proportional to 2,252,990 and 3,490,806

Step by Step Solution

1. Step 1: Write the proportion equation
   2,252,990 : 3,490,806 = 3,490,806 : x
2. Step 2: Convert to fraction form
   2,252,990/3,490,806 = 3,490,806/x
3. Step 3: Cross multiply
   2,252,990x = 3,490,806 × 3,490,806
4. Step 4: Simplify right side
   2,252,990x = 12,185,726,529,636
5. Step 5: Solve for x
   x = 12,185,726,529,636/2,252,990
6. Step 6: Final answer
   x = 5,408,690.91