Finding the Third Proportional to 11,219.50 and 17,130.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,219.50 : 17,130.50 = 17,130.50 : x
2. Step 2: Convert to fraction form
   11,219.50/17,130.50 = 17,130.50/x
3. Step 3: Cross multiply
   11,219.50x = 17,130.50 × 17,130.50
4. Step 4: Simplify right side
   11,219.50x = 293,454,030.25
5. Step 5: Solve for x
   x = 293,454,030.25/11,219.50
6. Step 6: Final answer
   x = 26,155.71