Finding the Third Proportional to 7,800 and 10,303.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,800 : 10,303.50 = 10,303.50 : x
2. Step 2: Convert to fraction form
   7,800/10,303.50 = 10,303.50/x
3. Step 3: Cross multiply
   7,800x = 10,303.50 × 10,303.50
4. Step 4: Simplify right side
   7,800x = 106,162,112.25
5. Step 5: Solve for x
   x = 106,162,112.25/7,800
6. Step 6: Final answer
   x = 13,610.53