Finding the Third Proportional to 3,405.94 and 5,275.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,405.94 : 5,275.69 = 5,275.69 : x
2. Step 2: Convert to fraction form
   3,405.94/5,275.69 = 5,275.69/x
3. Step 3: Cross multiply
   3,405.94x = 5,275.69 × 5,275.69
4. Step 4: Simplify right side
   3,405.94x = 27,832,878.60
5. Step 5: Solve for x
   x = 27,832,878.60/3,405.94
6. Step 6: Final answer
   x = 8,171.87