Finding the Third Proportional to 67,731.75 and 146,178

Step by Step Solution

1. Step 1: Write the proportion equation
   67,731.75 : 146,178 = 146,178 : x
2. Step 2: Convert to fraction form
   67,731.75/146,178 = 146,178/x
3. Step 3: Cross multiply
   67,731.75x = 146,178 × 146,178
4. Step 4: Simplify right side
   67,731.75x = 21,368,007,684
5. Step 5: Solve for x
   x = 21,368,007,684/67,731.75
6. Step 6: Final answer
   x = 315,479.93