Finding the Third Proportional to 144,969.75 and 221,778

Step by Step Solution

1. Step 1: Write the proportion equation
   144,969.75 : 221,778 = 221,778 : x
2. Step 2: Convert to fraction form
   144,969.75/221,778 = 221,778/x
3. Step 3: Cross multiply
   144,969.75x = 221,778 × 221,778
4. Step 4: Simplify right side
   144,969.75x = 49,185,481,284
5. Step 5: Solve for x
   x = 49,185,481,284/144,969.75
6. Step 6: Final answer
   x = 339,281.00