Finding the Third Proportional to 3,525 and 5,380.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,525 : 5,380.50 = 5,380.50 : x
2. Step 2: Convert to fraction form
   3,525/5,380.50 = 5,380.50/x
3. Step 3: Cross multiply
   3,525x = 5,380.50 × 5,380.50
4. Step 4: Simplify right side
   3,525x = 28,949,780.25
5. Step 5: Solve for x
   x = 28,949,780.25/3,525
6. Step 6: Final answer
   x = 8,212.70