Finding the Third Proportional to 2,215.69 and 4,823.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,215.69 : 4,823.72 = 4,823.72 : x
2. Step 2: Convert to fraction form
   2,215.69/4,823.72 = 4,823.72/x
3. Step 3: Cross multiply
   2,215.69x = 4,823.72 × 4,823.72
4. Step 4: Simplify right side
   2,215.69x = 23,268,262.58
5. Step 5: Solve for x
   x = 23,268,262.58/2,215.69
6. Step 6: Final answer
   x = 10,501.60