Finding the Third Proportional to 587,790 and 1,200,474

Step by Step Solution

1. Step 1: Write the proportion equation
   587,790 : 1,200,474 = 1,200,474 : x
2. Step 2: Convert to fraction form
   587,790/1,200,474 = 1,200,474/x
3. Step 3: Cross multiply
   587,790x = 1,200,474 × 1,200,474
4. Step 4: Simplify right side
   587,790x = 1,441,137,824,676
5. Step 5: Solve for x
   x = 1,441,137,824,676/587,790
6. Step 6: Final answer
   x = 2,451,790.31