Finding the Third Proportional to 30,679 and 62,648

Step by Step Solution

1. Step 1: Write the proportion equation
   30,679 : 62,648 = 62,648 : x
2. Step 2: Convert to fraction form
   30,679/62,648 = 62,648/x
3. Step 3: Cross multiply
   30,679x = 62,648 × 62,648
4. Step 4: Simplify right side
   30,679x = 3,924,771,904
5. Step 5: Solve for x
   x = 3,924,771,904/30,679
6. Step 6: Final answer
   x = 127,930.24