Finding the Third Proportional to 244,024 and 388,210

Step by Step Solution

1. Step 1: Write the proportion equation
   244,024 : 388,210 = 388,210 : x
2. Step 2: Convert to fraction form
   244,024/388,210 = 388,210/x
3. Step 3: Cross multiply
   244,024x = 388,210 × 388,210
4. Step 4: Simplify right side
   244,024x = 150,707,004,100
5. Step 5: Solve for x
   x = 150,707,004,100/244,024
6. Step 6: Final answer
   x = 617,590.91