Finding the Third Proportional to 2,619.84 and 5,615.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,619.84 : 5,615.58 = 5,615.58 : x
2. Step 2: Convert to fraction form
   2,619.84/5,615.58 = 5,615.58/x
3. Step 3: Cross multiply
   2,619.84x = 5,615.58 × 5,615.58
4. Step 4: Simplify right side
   2,619.84x = 31,534,717.68
5. Step 5: Solve for x
   x = 31,534,717.68/2,619.84
6. Step 6: Final answer
   x = 12,036.87