Finding the Third Proportional to 1,486.69 and 2,216.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,486.69 : 2,216.81 = 2,216.81 : x
2. Step 2: Convert to fraction form
   1,486.69/2,216.81 = 2,216.81/x
3. Step 3: Cross multiply
   1,486.69x = 2,216.81 × 2,216.81
4. Step 4: Simplify right side
   1,486.69x = 4,914,257.66
5. Step 5: Solve for x
   x = 4,914,257.66/1,486.69
6. Step 6: Final answer
   x = 3,305.51