Finding the Third Proportional to 590,804 and 1,288,544

Step by Step Solution

1. Step 1: Write the proportion equation
   590,804 : 1,288,544 = 1,288,544 : x
2. Step 2: Convert to fraction form
   590,804/1,288,544 = 1,288,544/x
3. Step 3: Cross multiply
   590,804x = 1,288,544 × 1,288,544
4. Step 4: Simplify right side
   590,804x = 1,660,345,639,936
5. Step 5: Solve for x
   x = 1,660,345,639,936/590,804
6. Step 6: Final answer
   x = 2,810,315.50