Finding the Third Proportional to 9,868.50 and 12,803.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,868.50 : 12,803.25 = 12,803.25 : x
2. Step 2: Convert to fraction form
   9,868.50/12,803.25 = 12,803.25/x
3. Step 3: Cross multiply
   9,868.50x = 12,803.25 × 12,803.25
4. Step 4: Simplify right side
   9,868.50x = 163,923,210.56
5. Step 5: Solve for x
   x = 163,923,210.56/9,868.50
6. Step 6: Final answer
   x = 16,610.75