Finding the Third Proportional to 12,546.56 and 18,821.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,546.56 : 18,821.53 = 18,821.53 : x
2. Step 2: Convert to fraction form
   12,546.56/18,821.53 = 18,821.53/x
3. Step 3: Cross multiply
   12,546.56x = 18,821.53 × 18,821.53
4. Step 4: Simplify right side
   12,546.56x = 354,250,038.59
5. Step 5: Solve for x
   x = 354,250,038.59/12,546.56
6. Step 6: Final answer
   x = 28,234.83