Finding the Third Proportional to 1,646,871 and 3,568,611

Step by Step Solution

1. Step 1: Write the proportion equation
   1,646,871 : 3,568,611 = 3,568,611 : x
2. Step 2: Convert to fraction form
   1,646,871/3,568,611 = 3,568,611/x
3. Step 3: Cross multiply
   1,646,871x = 3,568,611 × 3,568,611
4. Step 4: Simplify right side
   1,646,871x = 12,734,984,469,321
5. Step 5: Solve for x
   x = 12,734,984,469,321/1,646,871
6. Step 6: Final answer
   x = 7,732,836.68