Finding the Third Proportional to 8,381.53 and 12,427.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,381.53 : 12,427.59 = 12,427.59 : x
2. Step 2: Convert to fraction form
   8,381.53/12,427.59 = 12,427.59/x
3. Step 3: Cross multiply
   8,381.53x = 12,427.59 × 12,427.59
4. Step 4: Simplify right side
   8,381.53x = 154,445,086.42
5. Step 5: Solve for x
   x = 154,445,086.42/8,381.53
6. Step 6: Final answer
   x = 18,426.83