Finding the Third Proportional to 1,489,580 and 3,189,104

Step by Step Solution

1. Step 1: Write the proportion equation
   1,489,580 : 3,189,104 = 3,189,104 : x
2. Step 2: Convert to fraction form
   1,489,580/3,189,104 = 3,189,104/x
3. Step 3: Cross multiply
   1,489,580x = 3,189,104 × 3,189,104
4. Step 4: Simplify right side
   1,489,580x = 10,170,384,322,816
5. Step 5: Solve for x
   x = 10,170,384,322,816/1,489,580
6. Step 6: Final answer
   x = 6,827,685.87