Finding the Third Proportional to 9,886 and 13,317

Step by Step Solution

1. Step 1: Write the proportion equation
   9,886 : 13,317 = 13,317 : x
2. Step 2: Convert to fraction form
   9,886/13,317 = 13,317/x
3. Step 3: Cross multiply
   9,886x = 13,317 × 13,317
4. Step 4: Simplify right side
   9,886x = 177,342,489
5. Step 5: Solve for x
   x = 177,342,489/9,886
6. Step 6: Final answer
   x = 17,938.75