Finding the Third Proportional to 30,656 and 62,608

Step by Step Solution

1. Step 1: Write the proportion equation
   30,656 : 62,608 = 62,608 : x
2. Step 2: Convert to fraction form
   30,656/62,608 = 62,608/x
3. Step 3: Cross multiply
   30,656x = 62,608 × 62,608
4. Step 4: Simplify right side
   30,656x = 3,919,761,664
5. Step 5: Solve for x
   x = 3,919,761,664/30,656
6. Step 6: Final answer
   x = 127,862.79