Finding the Third Proportional to 13,144 and 20,910

Step by Step Solution

1. Step 1: Write the proportion equation
   13,144 : 20,910 = 20,910 : x
2. Step 2: Convert to fraction form
   13,144/20,910 = 20,910/x
3. Step 3: Cross multiply
   13,144x = 20,910 × 20,910
4. Step 4: Simplify right side
   13,144x = 437,228,100
5. Step 5: Solve for x
   x = 437,228,100/13,144
6. Step 6: Final answer
   x = 33,264.46