Finding the Third Proportional to 11,190.50 and 17,109.75

Step by Step Solution

1. Step 1: Write the proportion equation
   11,190.50 : 17,109.75 = 17,109.75 : x
2. Step 2: Convert to fraction form
   11,190.50/17,109.75 = 17,109.75/x
3. Step 3: Cross multiply
   11,190.50x = 17,109.75 × 17,109.75
4. Step 4: Simplify right side
   11,190.50x = 292,743,545.06
5. Step 5: Solve for x
   x = 292,743,545.06/11,190.50
6. Step 6: Final answer
   x = 26,160.01