Finding the Third Proportional to 244,472.50 and 388,984

Step by Step Solution

1. Step 1: Write the proportion equation
   244,472.50 : 388,984 = 388,984 : x
2. Step 2: Convert to fraction form
   244,472.50/388,984 = 388,984/x
3. Step 3: Cross multiply
   244,472.50x = 388,984 × 388,984
4. Step 4: Simplify right side
   244,472.50x = 151,308,552,256
5. Step 5: Solve for x
   x = 151,308,552,256/244,472.50
6. Step 6: Final answer
   x = 618,918.50