Finding the Third Proportional to 63,768.75 and 139,019.25

Step by Step Solution

1. Step 1: Write the proportion equation
   63,768.75 : 139,019.25 = 139,019.25 : x
2. Step 2: Convert to fraction form
   63,768.75/139,019.25 = 139,019.25/x
3. Step 3: Cross multiply
   63,768.75x = 139,019.25 × 139,019.25
4. Step 4: Simplify right side
   63,768.75x = 19,326,351,870.56
5. Step 5: Solve for x
   x = 19,326,351,870.56/63,768.75
6. Step 6: Final answer
   x = 303,069.32