Finding the Third Proportional to 1,489,592 and 3,189,124

Step by Step Solution

1. Step 1: Write the proportion equation
   1,489,592 : 3,189,124 = 3,189,124 : x
2. Step 2: Convert to fraction form
   1,489,592/3,189,124 = 3,189,124/x
3. Step 3: Cross multiply
   1,489,592x = 3,189,124 × 3,189,124
4. Step 4: Simplify right side
   1,489,592x = 10,170,511,887,376
5. Step 5: Solve for x
   x = 10,170,511,887,376/1,489,592
6. Step 6: Final answer
   x = 6,827,716.51