Finding the Third Proportional to 67,227.75 and 143,287.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,227.75 : 143,287.50 = 143,287.50 : x
2. Step 2: Convert to fraction form
   67,227.75/143,287.50 = 143,287.50/x
3. Step 3: Cross multiply
   67,227.75x = 143,287.50 × 143,287.50
4. Step 4: Simplify right side
   67,227.75x = 20,531,307,656.25
5. Step 5: Solve for x
   x = 20,531,307,656.25/67,227.75
6. Step 6: Final answer
   x = 305,399.30