Finding the Third Proportional to 3,925.75 and 8,499.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,925.75 : 8,499.25 = 8,499.25 : x
2. Step 2: Convert to fraction form
   3,925.75/8,499.25 = 8,499.25/x
3. Step 3: Cross multiply
   3,925.75x = 8,499.25 × 8,499.25
4. Step 4: Simplify right side
   3,925.75x = 72,237,250.56
5. Step 5: Solve for x
   x = 72,237,250.56/3,925.75
6. Step 6: Final answer
   x = 18,400.88