Finding the Third Proportional to 578,469 and 1,200,675

Step by Step Solution

1. Step 1: Write the proportion equation
   578,469 : 1,200,675 = 1,200,675 : x
2. Step 2: Convert to fraction form
   578,469/1,200,675 = 1,200,675/x
3. Step 3: Cross multiply
   578,469x = 1,200,675 × 1,200,675
4. Step 4: Simplify right side
   578,469x = 1,441,620,455,625
5. Step 5: Solve for x
   x = 1,441,620,455,625/578,469
6. Step 6: Final answer
   x = 2,492,130.88