Finding the Third Proportional to 127,904 and 200,205

Step by Step Solution

1. Step 1: Write the proportion equation
   127,904 : 200,205 = 200,205 : x
2. Step 2: Convert to fraction form
   127,904/200,205 = 200,205/x
3. Step 3: Cross multiply
   127,904x = 200,205 × 200,205
4. Step 4: Simplify right side
   127,904x = 40,082,042,025
5. Step 5: Solve for x
   x = 40,082,042,025/127,904
6. Step 6: Final answer
   x = 313,375.99