Finding the Third Proportional to 143,076.75 and 221,441

Step by Step Solution

1. Step 1: Write the proportion equation
   143,076.75 : 221,441 = 221,441 : x
2. Step 2: Convert to fraction form
   143,076.75/221,441 = 221,441/x
3. Step 3: Cross multiply
   143,076.75x = 221,441 × 221,441
4. Step 4: Simplify right side
   143,076.75x = 49,036,116,481
5. Step 5: Solve for x
   x = 49,036,116,481/143,076.75
6. Step 6: Final answer
   x = 342,725.96