Finding the Third Proportional to 9,726 and 13,137

Step by Step Solution

1. Step 1: Write the proportion equation
   9,726 : 13,137 = 13,137 : x
2. Step 2: Convert to fraction form
   9,726/13,137 = 13,137/x
3. Step 3: Cross multiply
   9,726x = 13,137 × 13,137
4. Step 4: Simplify right side
   9,726x = 172,580,769
5. Step 5: Solve for x
   x = 172,580,769/9,726
6. Step 6: Final answer
   x = 17,744.27