Finding the Third Proportional to 9,124 and 12,908

Step by Step Solution

1. Step 1: Write the proportion equation
   9,124 : 12,908 = 12,908 : x
2. Step 2: Convert to fraction form
   9,124/12,908 = 12,908/x
3. Step 3: Cross multiply
   9,124x = 12,908 × 12,908
4. Step 4: Simplify right side
   9,124x = 166,616,464
5. Step 5: Solve for x
   x = 166,616,464/9,124
6. Step 6: Final answer
   x = 18,261.34