Finding the Third Proportional to 10,447.31 and 21,404.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,447.31 : 21,404.25 = 21,404.25 : x
2. Step 2: Convert to fraction form
   10,447.31/21,404.25 = 21,404.25/x
3. Step 3: Cross multiply
   10,447.31x = 21,404.25 × 21,404.25
4. Step 4: Simplify right side
   10,447.31x = 458,141,918.06
5. Step 5: Solve for x
   x = 458,141,918.06/10,447.31
6. Step 6: Final answer
   x = 43,852.61