Finding the Third Proportional to 3,770.30 and 8,115.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,770.30 : 8,115.82 = 8,115.82 : x
2. Step 2: Convert to fraction form
   3,770.30/8,115.82 = 8,115.82/x
3. Step 3: Cross multiply
   3,770.30x = 8,115.82 × 8,115.82
4. Step 4: Simplify right side
   3,770.30x = 65,866,539.34
5. Step 5: Solve for x
   x = 65,866,539.34/3,770.30
6. Step 6: Final answer
   x = 17,469.85