Finding the Third Proportional to 13,158 and 20,043

Step by Step Solution

1. Step 1: Write the proportion equation
   13,158 : 20,043 = 20,043 : x
2. Step 2: Convert to fraction form
   13,158/20,043 = 20,043/x
3. Step 3: Cross multiply
   13,158x = 20,043 × 20,043
4. Step 4: Simplify right side
   13,158x = 401,721,849
5. Step 5: Solve for x
   x = 401,721,849/13,158
6. Step 6: Final answer
   x = 30,530.62