Finding the Third Proportional to 20,143 and 30,162

Step by Step Solution

1. Step 1: Write the proportion equation
   20,143 : 30,162 = 30,162 : x
2. Step 2: Convert to fraction form
   20,143/30,162 = 30,162/x
3. Step 3: Cross multiply
   20,143x = 30,162 × 30,162
4. Step 4: Simplify right side
   20,143x = 909,746,244
5. Step 5: Solve for x
   x = 909,746,244/20,143
6. Step 6: Final answer
   x = 45,164.39