Finding the Third Proportional to 12,505.50 and 18,803.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,505.50 : 18,803.81 = 18,803.81 : x
2. Step 2: Convert to fraction form
   12,505.50/18,803.81 = 18,803.81/x
3. Step 3: Cross multiply
   12,505.50x = 18,803.81 × 18,803.81
4. Step 4: Simplify right side
   12,505.50x = 353,583,364.54
5. Step 5: Solve for x
   x = 353,583,364.54/12,505.50
6. Step 6: Final answer
   x = 28,274.23