Finding the Third Proportional to 12,488.34 and 18,542.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,488.34 : 18,542.25 = 18,542.25 : x
2. Step 2: Convert to fraction form
   12,488.34/18,542.25 = 18,542.25/x
3. Step 3: Cross multiply
   12,488.34x = 18,542.25 × 18,542.25
4. Step 4: Simplify right side
   12,488.34x = 343,815,035.06
5. Step 5: Solve for x
   x = 343,815,035.06/12,488.34
6. Step 6: Final answer
   x = 27,530.88