Finding the Third Proportional to 143,326 and 200,460

Step by Step Solution

1. Step 1: Write the proportion equation
   143,326 : 200,460 = 200,460 : x
2. Step 2: Convert to fraction form
   143,326/200,460 = 200,460/x
3. Step 3: Cross multiply
   143,326x = 200,460 × 200,460
4. Step 4: Simplify right side
   143,326x = 40,184,211,600
5. Step 5: Solve for x
   x = 40,184,211,600/143,326
6. Step 6: Final answer
   x = 280,369.31