Finding the Third Proportional to 245,024.50 and 394,738

Step by Step Solution

1. Step 1: Write the proportion equation
   245,024.50 : 394,738 = 394,738 : x
2. Step 2: Convert to fraction form
   245,024.50/394,738 = 394,738/x
3. Step 3: Cross multiply
   245,024.50x = 394,738 × 394,738
4. Step 4: Simplify right side
   245,024.50x = 155,818,088,644
5. Step 5: Solve for x
   x = 155,818,088,644/245,024.50
6. Step 6: Final answer
   x = 635,928.61