Finding the Third Proportional to 68,019.75 and 146,468.25

Step by Step Solution

1. Step 1: Write the proportion equation
   68,019.75 : 146,468.25 = 146,468.25 : x
2. Step 2: Convert to fraction form
   68,019.75/146,468.25 = 146,468.25/x
3. Step 3: Cross multiply
   68,019.75x = 146,468.25 × 146,468.25
4. Step 4: Simplify right side
   68,019.75x = 21,452,948,258.06
5. Step 5: Solve for x
   x = 21,452,948,258.06/68,019.75
6. Step 6: Final answer
   x = 315,392.93