Finding the Third Proportional to 12,631 and 19,612

Step by Step Solution

1. Step 1: Write the proportion equation
   12,631 : 19,612 = 19,612 : x
2. Step 2: Convert to fraction form
   12,631/19,612 = 19,612/x
3. Step 3: Cross multiply
   12,631x = 19,612 × 19,612
4. Step 4: Simplify right side
   12,631x = 384,630,544
5. Step 5: Solve for x
   x = 384,630,544/12,631
6. Step 6: Final answer
   x = 30,451.31