Finding the Third Proportional to 63,765 and 139,648.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,765 : 139,648.50 = 139,648.50 : x
2. Step 2: Convert to fraction form
   63,765/139,648.50 = 139,648.50/x
3. Step 3: Cross multiply
   63,765x = 139,648.50 × 139,648.50
4. Step 4: Simplify right side
   63,765x = 19,501,703,552.25
5. Step 5: Solve for x
   x = 19,501,703,552.25/63,765
6. Step 6: Final answer
   x = 305,837.11