Finding the Third Proportional to 3,691.41 and 5,590.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,691.41 : 5,590.69 = 5,590.69 : x
2. Step 2: Convert to fraction form
   3,691.41/5,590.69 = 5,590.69/x
3. Step 3: Cross multiply
   3,691.41x = 5,590.69 × 5,590.69
4. Step 4: Simplify right side
   3,691.41x = 31,255,786.72
5. Step 5: Solve for x
   x = 31,255,786.72/3,691.41
6. Step 6: Final answer
   x = 8,467.18