Finding the Third Proportional to 394,753.50 and 612,360

Step by Step Solution

1. Step 1: Write the proportion equation
   394,753.50 : 612,360 = 612,360 : x
2. Step 2: Convert to fraction form
   394,753.50/612,360 = 612,360/x
3. Step 3: Cross multiply
   394,753.50x = 612,360 × 612,360
4. Step 4: Simplify right side
   394,753.50x = 374,984,769,600
5. Step 5: Solve for x
   x = 374,984,769,600/394,753.50
6. Step 6: Final answer
   x = 949,921.33