Finding the Third Proportional to 68,404.50 and 146,923.88

Step by Step Solution

1. Step 1: Write the proportion equation
   68,404.50 : 146,923.88 = 146,923.88 : x
2. Step 2: Convert to fraction form
   68,404.50/146,923.88 = 146,923.88/x
3. Step 3: Cross multiply
   68,404.50x = 146,923.88 × 146,923.88
4. Step 4: Simplify right side
   68,404.50x = 21,586,625,045.02
5. Step 5: Solve for x
   x = 21,586,625,045.02/68,404.50
6. Step 6: Final answer
   x = 315,573.17