Finding the Third Proportional to 7,485 and 10,015.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,485 : 10,015.50 = 10,015.50 : x
2. Step 2: Convert to fraction form
   7,485/10,015.50 = 10,015.50/x
3. Step 3: Cross multiply
   7,485x = 10,015.50 × 10,015.50
4. Step 4: Simplify right side
   7,485x = 100,310,240.25
5. Step 5: Solve for x
   x = 100,310,240.25/7,485
6. Step 6: Final answer
   x = 13,401.50