Finding the Third Proportional to 12,636 and 17,698

Step by Step Solution

1. Step 1: Write the proportion equation
   12,636 : 17,698 = 17,698 : x
2. Step 2: Convert to fraction form
   12,636/17,698 = 17,698/x
3. Step 3: Cross multiply
   12,636x = 17,698 × 17,698
4. Step 4: Simplify right side
   12,636x = 313,219,204
5. Step 5: Solve for x
   x = 313,219,204/12,636
6. Step 6: Final answer
   x = 24,787.84