Finding the Third Proportional to 67,240 and 144,656

Step by Step Solution

1. Step 1: Write the proportion equation
   67,240 : 144,656 = 144,656 : x
2. Step 2: Convert to fraction form
   67,240/144,656 = 144,656/x
3. Step 3: Cross multiply
   67,240x = 144,656 × 144,656
4. Step 4: Simplify right side
   67,240x = 20,925,358,336
5. Step 5: Solve for x
   x = 20,925,358,336/67,240
6. Step 6: Final answer
   x = 311,204.02