Finding the Third Proportional to 21,144 and 30,200

Step by Step Solution

1. Step 1: Write the proportion equation
   21,144 : 30,200 = 30,200 : x
2. Step 2: Convert to fraction form
   21,144/30,200 = 30,200/x
3. Step 3: Cross multiply
   21,144x = 30,200 × 30,200
4. Step 4: Simplify right side
   21,144x = 912,040,000
5. Step 5: Solve for x
   x = 912,040,000/21,144
6. Step 6: Final answer
   x = 43,134.70