Finding the Third Proportional to 2,309.25 and 4,405.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,309.25 : 4,405.88 = 4,405.88 : x
2. Step 2: Convert to fraction form
   2,309.25/4,405.88 = 4,405.88/x
3. Step 3: Cross multiply
   2,309.25x = 4,405.88 × 4,405.88
4. Step 4: Simplify right side
   2,309.25x = 19,411,734.52
5. Step 5: Solve for x
   x = 19,411,734.52/2,309.25
6. Step 6: Final answer
   x = 8,406.08