Finding the Third Proportional to 65,928 and 144,360

Step by Step Solution

1. Step 1: Write the proportion equation
   65,928 : 144,360 = 144,360 : x
2. Step 2: Convert to fraction form
   65,928/144,360 = 144,360/x
3. Step 3: Cross multiply
   65,928x = 144,360 × 144,360
4. Step 4: Simplify right side
   65,928x = 20,839,809,600
5. Step 5: Solve for x
   x = 20,839,809,600/65,928
6. Step 6: Final answer
   x = 316,099.53