Finding the Third Proportional to 67,687.31 and 146,205

Step by Step Solution

1. Step 1: Write the proportion equation
   67,687.31 : 146,205 = 146,205 : x
2. Step 2: Convert to fraction form
   67,687.31/146,205 = 146,205/x
3. Step 3: Cross multiply
   67,687.31x = 146,205 × 146,205
4. Step 4: Simplify right side
   67,687.31x = 21,375,902,025
5. Step 5: Solve for x
   x = 21,375,902,025/67,687.31
6. Step 6: Final answer
   x = 315,803.67