Finding the Third Proportional to 63,456.38 and 139,463.25

Step by Step Solution

1. Step 1: Write the proportion equation
   63,456.38 : 139,463.25 = 139,463.25 : x
2. Step 2: Convert to fraction form
   63,456.38/139,463.25 = 139,463.25/x
3. Step 3: Cross multiply
   63,456.38x = 139,463.25 × 139,463.25
4. Step 4: Simplify right side
   63,456.38x = 19,449,998,100.56
5. Step 5: Solve for x
   x = 19,449,998,100.56/63,456.38
6. Step 6: Final answer
   x = 306,509.76