Finding the Third Proportional to 1,921.22 and 3,042.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921.22 : 3,042.88 = 3,042.88 : x
2. Step 2: Convert to fraction form
   1,921.22/3,042.88 = 3,042.88/x
3. Step 3: Cross multiply
   1,921.22x = 3,042.88 × 3,042.88
4. Step 4: Simplify right side
   1,921.22x = 9,259,112.04
5. Step 5: Solve for x
   x = 9,259,112.04/1,921.22
6. Step 6: Final answer
   x = 4,819.40