Finding the Third Proportional to 3,793.31 and 8,315.63

Step by Step Solution

1. Step 1: Write the proportion equation
   3,793.31 : 8,315.63 = 8,315.63 : x
2. Step 2: Convert to fraction form
   3,793.31/8,315.63 = 8,315.63/x
3. Step 3: Cross multiply
   3,793.31x = 8,315.63 × 8,315.63
4. Step 4: Simplify right side
   3,793.31x = 69,149,619.14
5. Step 5: Solve for x
   x = 69,149,619.14/3,793.31
6. Step 6: Final answer
   x = 18,229.35