Finding the Third Proportional to 143,377.50 and 200,535

Step by Step Solution

1. Step 1: Write the proportion equation
   143,377.50 : 200,535 = 200,535 : x
2. Step 2: Convert to fraction form
   143,377.50/200,535 = 200,535/x
3. Step 3: Cross multiply
   143,377.50x = 200,535 × 200,535
4. Step 4: Simplify right side
   143,377.50x = 40,214,286,225
5. Step 5: Solve for x
   x = 40,214,286,225/143,377.50
6. Step 6: Final answer
   x = 280,478.36