Finding the Third Proportional to 244,264 and 388,560

Step by Step Solution

1. Step 1: Write the proportion equation
   244,264 : 388,560 = 388,560 : x
2. Step 2: Convert to fraction form
   244,264/388,560 = 388,560/x
3. Step 3: Cross multiply
   244,264x = 388,560 × 388,560
4. Step 4: Simplify right side
   244,264x = 150,978,873,600
5. Step 5: Solve for x
   x = 150,978,873,600/244,264
6. Step 6: Final answer
   x = 618,097.11