Finding the Third Proportional to 271,436 and 356,936

Step by Step Solution

1. Step 1: Write the proportion equation
   271,436 : 356,936 = 356,936 : x
2. Step 2: Convert to fraction form
   271,436/356,936 = 356,936/x
3. Step 3: Cross multiply
   271,436x = 356,936 × 356,936
4. Step 4: Simplify right side
   271,436x = 127,403,308,096
5. Step 5: Solve for x
   x = 127,403,308,096/271,436
6. Step 6: Final answer
   x = 469,367.76