Finding the Third Proportional to 65,735 and 143,909

Step by Step Solution

1. Step 1: Write the proportion equation
   65,735 : 143,909 = 143,909 : x
2. Step 2: Convert to fraction form
   65,735/143,909 = 143,909/x
3. Step 3: Cross multiply
   65,735x = 143,909 × 143,909
4. Step 4: Simplify right side
   65,735x = 20,709,800,281
5. Step 5: Solve for x
   x = 20,709,800,281/65,735
6. Step 6: Final answer
   x = 315,049.83