Finding the Third Proportional to 3,546.50 and 5,221.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,546.50 : 5,221.69 = 5,221.69 : x
2. Step 2: Convert to fraction form
   3,546.50/5,221.69 = 5,221.69/x
3. Step 3: Cross multiply
   3,546.50x = 5,221.69 × 5,221.69
4. Step 4: Simplify right side
   3,546.50x = 27,266,020.35
5. Step 5: Solve for x
   x = 27,266,020.35/3,546.50
6. Step 6: Final answer
   x = 7,688.15