Finding the Third Proportional to 13,426 and 20,122

Step by Step Solution

1. Step 1: Write the proportion equation
   13,426 : 20,122 = 20,122 : x
2. Step 2: Convert to fraction form
   13,426/20,122 = 20,122/x
3. Step 3: Cross multiply
   13,426x = 20,122 × 20,122
4. Step 4: Simplify right side
   13,426x = 404,894,884
5. Step 5: Solve for x
   x = 404,894,884/13,426
6. Step 6: Final answer
   x = 30,157.52