Finding the Third Proportional to 10,978.88 and 16,993.13

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.88 : 16,993.13 = 16,993.13 : x
2. Step 2: Convert to fraction form
   10,978.88/16,993.13 = 16,993.13/x
3. Step 3: Cross multiply
   10,978.88x = 16,993.13 × 16,993.13
4. Step 4: Simplify right side
   10,978.88x = 288,766,297.27
5. Step 5: Solve for x
   x = 288,766,297.27/10,978.88
6. Step 6: Final answer
   x = 26,301.99