Finding the Third Proportional to 10,998.28 and 17,017.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,998.28 : 17,017.59 = 17,017.59 : x
2. Step 2: Convert to fraction form
   10,998.28/17,017.59 = 17,017.59/x
3. Step 3: Cross multiply
   10,998.28x = 17,017.59 × 17,017.59
4. Step 4: Simplify right side
   10,998.28x = 289,598,497.04
5. Step 5: Solve for x
   x = 289,598,497.04/10,998.28
6. Step 6: Final answer
   x = 26,331.25