Finding the Third Proportional to 144,964.50 and 216,771

Step by Step Solution

1. Step 1: Write the proportion equation
   144,964.50 : 216,771 = 216,771 : x
2. Step 2: Convert to fraction form
   144,964.50/216,771 = 216,771/x
3. Step 3: Cross multiply
   144,964.50x = 216,771 × 216,771
4. Step 4: Simplify right side
   144,964.50x = 46,989,666,441
5. Step 5: Solve for x
   x = 46,989,666,441/144,964.50
6. Step 6: Final answer
   x = 324,146.02