Finding the Third Proportional to 20,138 and 30,181

Step by Step Solution

1. Step 1: Write the proportion equation
   20,138 : 30,181 = 30,181 : x
2. Step 2: Convert to fraction form
   20,138/30,181 = 30,181/x
3. Step 3: Cross multiply
   20,138x = 30,181 × 30,181
4. Step 4: Simplify right side
   20,138x = 910,892,761
5. Step 5: Solve for x
   x = 910,892,761/20,138
6. Step 6: Final answer
   x = 45,232.53