Finding the Third Proportional to 9,813 and 13,979

Step by Step Solution

1. Step 1: Write the proportion equation
   9,813 : 13,979 = 13,979 : x
2. Step 2: Convert to fraction form
   9,813/13,979 = 13,979/x
3. Step 3: Cross multiply
   9,813x = 13,979 × 13,979
4. Step 4: Simplify right side
   9,813x = 195,412,441
5. Step 5: Solve for x
   x = 195,412,441/9,813
6. Step 6: Final answer
   x = 19,913.63