Finding the Third Proportional to 8,799.75 and 19,309.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,799.75 : 19,309.50 = 19,309.50 : x
2. Step 2: Convert to fraction form
   8,799.75/19,309.50 = 19,309.50/x
3. Step 3: Cross multiply
   8,799.75x = 19,309.50 × 19,309.50
4. Step 4: Simplify right side
   8,799.75x = 372,856,790.25
5. Step 5: Solve for x
   x = 372,856,790.25/8,799.75
6. Step 6: Final answer
   x = 42,371.29