Finding the Third Proportional to 127,844 and 278,760

Step by Step Solution

1. Step 1: Write the proportion equation
   127,844 : 278,760 = 278,760 : x
2. Step 2: Convert to fraction form
   127,844/278,760 = 278,760/x
3. Step 3: Cross multiply
   127,844x = 278,760 × 278,760
4. Step 4: Simplify right side
   127,844x = 77,707,137,600
5. Step 5: Solve for x
   x = 77,707,137,600/127,844
6. Step 6: Final answer
   x = 607,827.80