Finding the Third Proportional to 127,180 and 251,158

Step by Step Solution

1. Step 1: Write the proportion equation
   127,180 : 251,158 = 251,158 : x
2. Step 2: Convert to fraction form
   127,180/251,158 = 251,158/x
3. Step 3: Cross multiply
   127,180x = 251,158 × 251,158
4. Step 4: Simplify right side
   127,180x = 63,080,340,964
5. Step 5: Solve for x
   x = 63,080,340,964/127,180
6. Step 6: Final answer
   x = 495,992.62