Finding the Third Proportional to 1,489,582 and 3,189,108

Step by Step Solution

1. Step 1: Write the proportion equation
   1,489,582 : 3,189,108 = 3,189,108 : x
2. Step 2: Convert to fraction form
   1,489,582/3,189,108 = 3,189,108/x
3. Step 3: Cross multiply
   1,489,582x = 3,189,108 × 3,189,108
4. Step 4: Simplify right side
   1,489,582x = 10,170,409,835,664
5. Step 5: Solve for x
   x = 10,170,409,835,664/1,489,582
6. Step 6: Final answer
   x = 6,827,693.83