Finding the Third Proportional to 2,112.33 and 3,218.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.33 : 3,218.48 = 3,218.48 : x
2. Step 2: Convert to fraction form
   2,112.33/3,218.48 = 3,218.48/x
3. Step 3: Cross multiply
   2,112.33x = 3,218.48 × 3,218.48
4. Step 4: Simplify right side
   2,112.33x = 10,358,641.67
5. Step 5: Solve for x
   x = 10,358,641.67/2,112.33
6. Step 6: Final answer
   x = 4,903.90