Finding the Third Proportional to 63,504 and 139,965.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,504 : 139,965.50 = 139,965.50 : x
2. Step 2: Convert to fraction form
   63,504/139,965.50 = 139,965.50/x
3. Step 3: Cross multiply
   63,504x = 139,965.50 × 139,965.50
4. Step 4: Simplify right side
   63,504x = 19,590,341,190.25
5. Step 5: Solve for x
   x = 19,590,341,190.25/63,504
6. Step 6: Final answer
   x = 308,489.88