Finding the Third Proportional to 10,440.56 and 21,906.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,440.56 : 21,906.28 = 21,906.28 : x
2. Step 2: Convert to fraction form
   10,440.56/21,906.28 = 21,906.28/x
3. Step 3: Cross multiply
   10,440.56x = 21,906.28 × 21,906.28
4. Step 4: Simplify right side
   10,440.56x = 479,885,158.20
5. Step 5: Solve for x
   x = 479,885,158.20/10,440.56
6. Step 6: Final answer
   x = 45,963.53