Finding the Third Proportional to 1,613,605 and 3,520,610

Step by Step Solution

1. Step 1: Write the proportion equation
   1,613,605 : 3,520,610 = 3,520,610 : x
2. Step 2: Convert to fraction form
   1,613,605/3,520,610 = 3,520,610/x
3. Step 3: Cross multiply
   1,613,605x = 3,520,610 × 3,520,610
4. Step 4: Simplify right side
   1,613,605x = 12,394,694,772,100
5. Step 5: Solve for x
   x = 12,394,694,772,100/1,613,605
6. Step 6: Final answer
   x = 7,681,368.60