Finding the Third Proportional to 1,489,596 and 3,189,132

Step by Step Solution

1. Step 1: Write the proportion equation
   1,489,596 : 3,189,132 = 3,189,132 : x
2. Step 2: Convert to fraction form
   1,489,596/3,189,132 = 3,189,132/x
3. Step 3: Cross multiply
   1,489,596x = 3,189,132 × 3,189,132
4. Step 4: Simplify right side
   1,489,596x = 10,170,562,913,424
5. Step 5: Solve for x
   x = 10,170,562,913,424/1,489,596
6. Step 6: Final answer
   x = 6,827,732.43