Finding the Third Proportional to 65,608 and 143,816

Step by Step Solution

1. Step 1: Write the proportion equation
   65,608 : 143,816 = 143,816 : x
2. Step 2: Convert to fraction form
   65,608/143,816 = 143,816/x
3. Step 3: Cross multiply
   65,608x = 143,816 × 143,816
4. Step 4: Simplify right side
   65,608x = 20,683,041,856
5. Step 5: Solve for x
   x = 20,683,041,856/65,608
6. Step 6: Final answer
   x = 315,251.83