Finding the Third Proportional to 143,319 and 200,452.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,319 : 200,452.50 = 200,452.50 : x
2. Step 2: Convert to fraction form
   143,319/200,452.50 = 200,452.50/x
3. Step 3: Cross multiply
   143,319x = 200,452.50 × 200,452.50
4. Step 4: Simplify right side
   143,319x = 40,181,204,756.25
5. Step 5: Solve for x
   x = 40,181,204,756.25/143,319
6. Step 6: Final answer
   x = 280,362.02