Finding the Third Proportional to 12,387.94 and 18,308.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,387.94 : 18,308.53 = 18,308.53 : x
2. Step 2: Convert to fraction form
   12,387.94/18,308.53 = 18,308.53/x
3. Step 3: Cross multiply
   12,387.94x = 18,308.53 × 18,308.53
4. Step 4: Simplify right side
   12,387.94x = 335,202,316.53
5. Step 5: Solve for x
   x = 335,202,316.53/12,387.94
6. Step 6: Final answer
   x = 27,058.77