Finding the Third Proportional to 12,042.42 and 19,178.65

Step by Step Solution

1. Step 1: Write the proportion equation
   12,042.42 : 19,178.65 = 19,178.65 : x
2. Step 2: Convert to fraction form
   12,042.42/19,178.65 = 19,178.65/x
3. Step 3: Cross multiply
   12,042.42x = 19,178.65 × 19,178.65
4. Step 4: Simplify right side
   12,042.42x = 367,820,555.89
5. Step 5: Solve for x
   x = 367,820,555.89/12,042.42
6. Step 6: Final answer
   x = 30,543.74