Finding the Third Proportional to 3,487.50 and 7,145.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,487.50 : 7,145.25 = 7,145.25 : x
2. Step 2: Convert to fraction form
   3,487.50/7,145.25 = 7,145.25/x
3. Step 3: Cross multiply
   3,487.50x = 7,145.25 × 7,145.25
4. Step 4: Simplify right side
   3,487.50x = 51,054,597.56
5. Step 5: Solve for x
   x = 51,054,597.56/3,487.50
6. Step 6: Final answer
   x = 14,639.31