Finding the Third Proportional to 65,716.50 and 143,595

Step by Step Solution

1. Step 1: Write the proportion equation
   65,716.50 : 143,595 = 143,595 : x
2. Step 2: Convert to fraction form
   65,716.50/143,595 = 143,595/x
3. Step 3: Cross multiply
   65,716.50x = 143,595 × 143,595
4. Step 4: Simplify right side
   65,716.50x = 20,619,524,025
5. Step 5: Solve for x
   x = 20,619,524,025/65,716.50
6. Step 6: Final answer
   x = 313,764.79