Finding the Third Proportional to 127,580.50 and 277,328

Step by Step Solution

1. Step 1: Write the proportion equation
   127,580.50 : 277,328 = 277,328 : x
2. Step 2: Convert to fraction form
   127,580.50/277,328 = 277,328/x
3. Step 3: Cross multiply
   127,580.50x = 277,328 × 277,328
4. Step 4: Simplify right side
   127,580.50x = 76,910,819,584
5. Step 5: Solve for x
   x = 76,910,819,584/127,580.50
6. Step 6: Final answer
   x = 602,841.50