Finding the Third Proportional to 2,212.88 and 4,813.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,212.88 : 4,813.31 = 4,813.31 : x
2. Step 2: Convert to fraction form
   2,212.88/4,813.31 = 4,813.31/x
3. Step 3: Cross multiply
   2,212.88x = 4,813.31 × 4,813.31
4. Step 4: Simplify right side
   2,212.88x = 23,167,977.22
5. Step 5: Solve for x
   x = 23,167,977.22/2,212.88
6. Step 6: Final answer
   x = 10,469.63