Finding the Third Proportional to 28,618 and 62,612

Step by Step Solution

1. Step 1: Write the proportion equation
   28,618 : 62,612 = 62,612 : x
2. Step 2: Convert to fraction form
   28,618/62,612 = 62,612/x
3. Step 3: Cross multiply
   28,618x = 62,612 × 62,612
4. Step 4: Simplify right side
   28,618x = 3,920,262,544
5. Step 5: Solve for x
   x = 3,920,262,544/28,618
6. Step 6: Final answer
   x = 136,985.90