Finding the Third Proportional to 394,233 and 617,723.50

Step by Step Solution

1. Step 1: Write the proportion equation
   394,233 : 617,723.50 = 617,723.50 : x
2. Step 2: Convert to fraction form
   394,233/617,723.50 = 617,723.50/x
3. Step 3: Cross multiply
   394,233x = 617,723.50 × 617,723.50
4. Step 4: Simplify right side
   394,233x = 381,582,322,452.25
5. Step 5: Solve for x
   x = 381,582,322,452.25/394,233
6. Step 6: Final answer
   x = 967,910.66