Finding the Third Proportional to 65,975.50 and 143,791.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,975.50 : 143,791.50 = 143,791.50 : x
2. Step 2: Convert to fraction form
   65,975.50/143,791.50 = 143,791.50/x
3. Step 3: Cross multiply
   65,975.50x = 143,791.50 × 143,791.50
4. Step 4: Simplify right side
   65,975.50x = 20,675,995,472.25
5. Step 5: Solve for x
   x = 20,675,995,472.25/65,975.50
6. Step 6: Final answer
   x = 313,388.99