Finding the Third Proportional to 244,251 and 388,543.50

Step by Step Solution

1. Step 1: Write the proportion equation
   244,251 : 388,543.50 = 388,543.50 : x
2. Step 2: Convert to fraction form
   244,251/388,543.50 = 388,543.50/x
3. Step 3: Cross multiply
   244,251x = 388,543.50 × 388,543.50
4. Step 4: Simplify right side
   244,251x = 150,966,051,392.25
5. Step 5: Solve for x
   x = 150,966,051,392.25/244,251
6. Step 6: Final answer
   x = 618,077.52