Finding the Third Proportional to 65,628 and 143,970

Step by Step Solution

1. Step 1: Write the proportion equation
   65,628 : 143,970 = 143,970 : x
2. Step 2: Convert to fraction form
   65,628/143,970 = 143,970/x
3. Step 3: Cross multiply
   65,628x = 143,970 × 143,970
4. Step 4: Simplify right side
   65,628x = 20,727,360,900
5. Step 5: Solve for x
   x = 20,727,360,900/65,628
6. Step 6: Final answer
   x = 315,831.06