Finding the Third Proportional to 30,658 and 62,612

Step by Step Solution

1. Step 1: Write the proportion equation
   30,658 : 62,612 = 62,612 : x
2. Step 2: Convert to fraction form
   30,658/62,612 = 62,612/x
3. Step 3: Cross multiply
   30,658x = 62,612 × 62,612
4. Step 4: Simplify right side
   30,658x = 3,920,262,544
5. Step 5: Solve for x
   x = 3,920,262,544/30,658
6. Step 6: Final answer
   x = 127,870.79