Finding the Third Proportional to 244,265 and 388,561.50

Step by Step Solution

1. Step 1: Write the proportion equation
   244,265 : 388,561.50 = 388,561.50 : x
2. Step 2: Convert to fraction form
   244,265/388,561.50 = 388,561.50/x
3. Step 3: Cross multiply
   244,265x = 388,561.50 × 388,561.50
4. Step 4: Simplify right side
   244,265x = 150,980,039,282.25
5. Step 5: Solve for x
   x = 150,980,039,282.25/244,265
6. Step 6: Final answer
   x = 618,099.36