Finding the Third Proportional to 18,142 and 28,036

Step by Step Solution

1. Step 1: Write the proportion equation
   18,142 : 28,036 = 28,036 : x
2. Step 2: Convert to fraction form
   18,142/28,036 = 28,036/x
3. Step 3: Cross multiply
   18,142x = 28,036 × 28,036
4. Step 4: Simplify right side
   18,142x = 786,017,296
5. Step 5: Solve for x
   x = 786,017,296/18,142
6. Step 6: Final answer
   x = 43,325.83