Finding the Third Proportional to 3,867.56 and 7,940.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,867.56 : 7,940.06 = 7,940.06 : x
2. Step 2: Convert to fraction form
   3,867.56/7,940.06 = 7,940.06/x
3. Step 3: Cross multiply
   3,867.56x = 7,940.06 × 7,940.06
4. Step 4: Simplify right side
   3,867.56x = 63,044,592.50
5. Step 5: Solve for x
   x = 63,044,592.50/3,867.56
6. Step 6: Final answer
   x = 16,300.86