Finding the Third Proportional to 67,047.75 and 143,831.25

Step by Step Solution

1. Step 1: Write the proportion equation
   67,047.75 : 143,831.25 = 143,831.25 : x
2. Step 2: Convert to fraction form
   67,047.75/143,831.25 = 143,831.25/x
3. Step 3: Cross multiply
   67,047.75x = 143,831.25 × 143,831.25
4. Step 4: Simplify right side
   67,047.75x = 20,687,428,476.56
5. Step 5: Solve for x
   x = 20,687,428,476.56/67,047.75
6. Step 6: Final answer
   x = 308,547.69