Finding the Third Proportional to 1,663,809 and 3,579,811

Step by Step Solution

1. Step 1: Write the proportion equation
   1,663,809 : 3,579,811 = 3,579,811 : x
2. Step 2: Convert to fraction form
   1,663,809/3,579,811 = 3,579,811/x
3. Step 3: Cross multiply
   1,663,809x = 3,579,811 × 3,579,811
4. Step 4: Simplify right side
   1,663,809x = 12,815,046,795,721
5. Step 5: Solve for x
   x = 12,815,046,795,721/1,663,809
6. Step 6: Final answer
   x = 7,702,234.33