Finding the Third Proportional to 2,212.63 and 4,818.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,212.63 : 4,818.23 = 4,818.23 : x
2. Step 2: Convert to fraction form
   2,212.63/4,818.23 = 4,818.23/x
3. Step 3: Cross multiply
   2,212.63x = 4,818.23 × 4,818.23
4. Step 4: Simplify right side
   2,212.63x = 23,215,382.49
5. Step 5: Solve for x
   x = 23,215,382.49/2,212.63
6. Step 6: Final answer
   x = 10,492.22