Finding the Third Proportional to 356,586 and 783,150

Step by Step Solution

1. Step 1: Write the proportion equation
   356,586 : 783,150 = 783,150 : x
2. Step 2: Convert to fraction form
   356,586/783,150 = 783,150/x
3. Step 3: Cross multiply
   356,586x = 783,150 × 783,150
4. Step 4: Simplify right side
   356,586x = 613,323,922,500
5. Step 5: Solve for x
   x = 613,323,922,500/356,586
6. Step 6: Final answer
   x = 1,719,988.79