Finding the Third Proportional to 143,361 and 200,560.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,361 : 200,560.50 = 200,560.50 : x
2. Step 2: Convert to fraction form
   143,361/200,560.50 = 200,560.50/x
3. Step 3: Cross multiply
   143,361x = 200,560.50 × 200,560.50
4. Step 4: Simplify right side
   143,361x = 40,224,514,160.25
5. Step 5: Solve for x
   x = 40,224,514,160.25/143,361
6. Step 6: Final answer
   x = 280,581.99