Finding the Third Proportional to 394,024.50 and 624,024

Step by Step Solution

1. Step 1: Write the proportion equation
   394,024.50 : 624,024 = 624,024 : x
2. Step 2: Convert to fraction form
   394,024.50/624,024 = 624,024/x
3. Step 3: Cross multiply
   394,024.50x = 624,024 × 624,024
4. Step 4: Simplify right side
   394,024.50x = 389,405,952,576
5. Step 5: Solve for x
   x = 389,405,952,576/394,024.50
6. Step 6: Final answer
   x = 988,278.53