Finding the Third Proportional to 65,223 and 139,923

Step by Step Solution

1. Step 1: Write the proportion equation
   65,223 : 139,923 = 139,923 : x
2. Step 2: Convert to fraction form
   65,223/139,923 = 139,923/x
3. Step 3: Cross multiply
   65,223x = 139,923 × 139,923
4. Step 4: Simplify right side
   65,223x = 19,578,445,929
5. Step 5: Solve for x
   x = 19,578,445,929/65,223
6. Step 6: Final answer
   x = 300,177.02