Finding the Third Proportional to 2,629.97 and 5,621.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,629.97 : 5,621.91 = 5,621.91 : x
2. Step 2: Convert to fraction form
   2,629.97/5,621.91 = 5,621.91/x
3. Step 3: Cross multiply
   2,629.97x = 5,621.91 × 5,621.91
4. Step 4: Simplify right side
   2,629.97x = 31,605,829.88
5. Step 5: Solve for x
   x = 31,605,829.88/2,629.97
6. Step 6: Final answer
   x = 12,017.57