Finding the Third Proportional to 3,929.34 and 8,551.41

Step by Step Solution

1. Step 1: Write the proportion equation
   3,929.34 : 8,551.41 = 8,551.41 : x
2. Step 2: Convert to fraction form
   3,929.34/8,551.41 = 8,551.41/x
3. Step 3: Cross multiply
   3,929.34x = 8,551.41 × 8,551.41
4. Step 4: Simplify right side
   3,929.34x = 73,126,548.85
5. Step 5: Solve for x
   x = 73,126,548.85/3,929.34
6. Step 6: Final answer
   x = 18,610.37