Finding the Third Proportional to 12,134.81 and 16,178.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,134.81 : 16,178.48 = 16,178.48 : x
2. Step 2: Convert to fraction form
   12,134.81/16,178.48 = 16,178.48/x
3. Step 3: Cross multiply
   12,134.81x = 16,178.48 × 16,178.48
4. Step 4: Simplify right side
   12,134.81x = 261,743,356.67
5. Step 5: Solve for x
   x = 261,743,356.67/12,134.81
6. Step 6: Final answer
   x = 21,569.63