Finding the Third Proportional to 9,078 and 13,671

Step by Step Solution

1. Step 1: Write the proportion equation
   9,078 : 13,671 = 13,671 : x
2. Step 2: Convert to fraction form
   9,078/13,671 = 13,671/x
3. Step 3: Cross multiply
   9,078x = 13,671 × 13,671
4. Step 4: Simplify right side
   9,078x = 186,896,241
5. Step 5: Solve for x
   x = 186,896,241/9,078
6. Step 6: Final answer
   x = 20,587.82