Finding the Third Proportional to 10,440 and 21,606

Step by Step Solution

1. Step 1: Write the proportion equation
   10,440 : 21,606 = 21,606 : x
2. Step 2: Convert to fraction form
   10,440/21,606 = 21,606/x
3. Step 3: Cross multiply
   10,440x = 21,606 × 21,606
4. Step 4: Simplify right side
   10,440x = 466,819,236
5. Step 5: Solve for x
   x = 466,819,236/10,440
6. Step 6: Final answer
   x = 44,714.49