Finding the Third Proportional to 10,318 and 21,554

Step by Step Solution

1. Step 1: Write the proportion equation
   10,318 : 21,554 = 21,554 : x
2. Step 2: Convert to fraction form
   10,318/21,554 = 21,554/x
3. Step 3: Cross multiply
   10,318x = 21,554 × 21,554
4. Step 4: Simplify right side
   10,318x = 464,574,916
5. Step 5: Solve for x
   x = 464,574,916/10,318
6. Step 6: Final answer
   x = 45,025.68