Finding the Third Proportional to 63,667 and 139,575.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,667 : 139,575.50 = 139,575.50 : x
2. Step 2: Convert to fraction form
   63,667/139,575.50 = 139,575.50/x
3. Step 3: Cross multiply
   63,667x = 139,575.50 × 139,575.50
4. Step 4: Simplify right side
   63,667x = 19,481,320,200.25
5. Step 5: Solve for x
   x = 19,481,320,200.25/63,667
6. Step 6: Final answer
   x = 305,987.72