Finding the Third Proportional to 2,405.95 and 3,531.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,405.95 : 3,531.09 = 3,531.09 : x
2. Step 2: Convert to fraction form
   2,405.95/3,531.09 = 3,531.09/x
3. Step 3: Cross multiply
   2,405.95x = 3,531.09 × 3,531.09
4. Step 4: Simplify right side
   2,405.95x = 12,468,623.07
5. Step 5: Solve for x
   x = 12,468,623.07/2,405.95
6. Step 6: Final answer
   x = 5,182.40