Finding the Third Proportional to 67,016.25 and 144,329.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,016.25 : 144,329.50 = 144,329.50 : x
2. Step 2: Convert to fraction form
   67,016.25/144,329.50 = 144,329.50/x
3. Step 3: Cross multiply
   67,016.25x = 144,329.50 × 144,329.50
4. Step 4: Simplify right side
   67,016.25x = 20,831,004,570.25
5. Step 5: Solve for x
   x = 20,831,004,570.25/67,016.25
6. Step 6: Final answer
   x = 310,835.13