Finding the Third Proportional to 12,436 and 16,590

Step by Step Solution

1. Step 1: Write the proportion equation
   12,436 : 16,590 = 16,590 : x
2. Step 2: Convert to fraction form
   12,436/16,590 = 16,590/x
3. Step 3: Cross multiply
   12,436x = 16,590 × 16,590
4. Step 4: Simplify right side
   12,436x = 275,228,100
5. Step 5: Solve for x
   x = 275,228,100/12,436
6. Step 6: Final answer
   x = 22,131.56