Finding the Third Proportional to 127,316 and 277,456

Step by Step Solution

1. Step 1: Write the proportion equation
   127,316 : 277,456 = 277,456 : x
2. Step 2: Convert to fraction form
   127,316/277,456 = 277,456/x
3. Step 3: Cross multiply
   127,316x = 277,456 × 277,456
4. Step 4: Simplify right side
   127,316x = 76,981,831,936
5. Step 5: Solve for x
   x = 76,981,831,936/127,316
6. Step 6: Final answer
   x = 604,651.67