Finding the Third Proportional to 12,174.38 and 18,487.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,174.38 : 18,487.88 = 18,487.88 : x
2. Step 2: Convert to fraction form
   12,174.38/18,487.88 = 18,487.88/x
3. Step 3: Cross multiply
   12,174.38x = 18,487.88 × 18,487.88
4. Step 4: Simplify right side
   12,174.38x = 341,801,522.02
5. Step 5: Solve for x
   x = 341,801,522.02/12,174.38
6. Step 6: Final answer
   x = 28,075.49