Finding the Third Proportional to 2,309 and 5,009.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,309 : 5,009.50 = 5,009.50 : x
2. Step 2: Convert to fraction form
   2,309/5,009.50 = 5,009.50/x
3. Step 3: Cross multiply
   2,309x = 5,009.50 × 5,009.50
4. Step 4: Simplify right side
   2,309x = 25,095,090.25
5. Step 5: Solve for x
   x = 25,095,090.25/2,309
6. Step 6: Final answer
   x = 10,868.38