Finding the Third Proportional to 68,016 and 145,859.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,016 : 145,859.50 = 145,859.50 : x
2. Step 2: Convert to fraction form
   68,016/145,859.50 = 145,859.50/x
3. Step 3: Cross multiply
   68,016x = 145,859.50 × 145,859.50
4. Step 4: Simplify right side
   68,016x = 21,274,993,740.25
5. Step 5: Solve for x
   x = 21,274,993,740.25/68,016
6. Step 6: Final answer
   x = 312,793.96