Finding the Third Proportional to 11,329.88 and 18,724.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,329.88 : 18,724.50 = 18,724.50 : x
2. Step 2: Convert to fraction form
   11,329.88/18,724.50 = 18,724.50/x
3. Step 3: Cross multiply
   11,329.88x = 18,724.50 × 18,724.50
4. Step 4: Simplify right side
   11,329.88x = 350,606,900.25
5. Step 5: Solve for x
   x = 350,606,900.25/11,329.88
6. Step 6: Final answer
   x = 30,945.35