Finding the Third Proportional to 65,760 and 143,175

Step by Step Solution

1. Step 1: Write the proportion equation
   65,760 : 143,175 = 143,175 : x
2. Step 2: Convert to fraction form
   65,760/143,175 = 143,175/x
3. Step 3: Cross multiply
   65,760x = 143,175 × 143,175
4. Step 4: Simplify right side
   65,760x = 20,499,080,625
5. Step 5: Solve for x
   x = 20,499,080,625/65,760
6. Step 6: Final answer
   x = 311,725.68