Finding the Third Proportional to 10,686.94 and 17,280.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,686.94 : 17,280.84 = 17,280.84 : x
2. Step 2: Convert to fraction form
   10,686.94/17,280.84 = 17,280.84/x
3. Step 3: Cross multiply
   10,686.94x = 17,280.84 × 17,280.84
4. Step 4: Simplify right side
   10,686.94x = 298,627,560.71
5. Step 5: Solve for x
   x = 298,627,560.71/10,686.94
6. Step 6: Final answer
   x = 27,943.23