Finding the Third Proportional to 15,318 and 17,748

Step by Step Solution

1. Step 1: Write the proportion equation
   15,318 : 17,748 = 17,748 : x
2. Step 2: Convert to fraction form
   15,318/17,748 = 17,748/x
3. Step 3: Cross multiply
   15,318x = 17,748 × 17,748
4. Step 4: Simplify right side
   15,318x = 314,991,504
5. Step 5: Solve for x
   x = 314,991,504/15,318
6. Step 6: Final answer
   x = 20,563.49