Finding the Third Proportional to 9,212.25 and 20,111.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,212.25 : 20,111.25 = 20,111.25 : x
2. Step 2: Convert to fraction form
   9,212.25/20,111.25 = 20,111.25/x
3. Step 3: Cross multiply
   9,212.25x = 20,111.25 × 20,111.25
4. Step 4: Simplify right side
   9,212.25x = 404,462,376.56
5. Step 5: Solve for x
   x = 404,462,376.56/9,212.25
6. Step 6: Final answer
   x = 43,904.84