Finding the Third Proportional to 12,330.50 and 18,803.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,330.50 : 18,803.50 = 18,803.50 : x
2. Step 2: Convert to fraction form
   12,330.50/18,803.50 = 18,803.50/x
3. Step 3: Cross multiply
   12,330.50x = 18,803.50 × 18,803.50
4. Step 4: Simplify right side
   12,330.50x = 353,571,612.25
5. Step 5: Solve for x
   x = 353,571,612.25/12,330.50
6. Step 6: Final answer
   x = 28,674.56