Finding the Third Proportional to 10,105.31 and 21,257.02

Step by Step Solution

1. Step 1: Write the proportion equation
   10,105.31 : 21,257.02 = 21,257.02 : x
2. Step 2: Convert to fraction form
   10,105.31/21,257.02 = 21,257.02/x
3. Step 3: Cross multiply
   10,105.31x = 21,257.02 × 21,257.02
4. Step 4: Simplify right side
   10,105.31x = 451,860,713.28
5. Step 5: Solve for x
   x = 451,860,713.28/10,105.31
6. Step 6: Final answer
   x = 44,715.16