Finding the Third Proportional to 70,456.50 and 146,734.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,456.50 : 146,734.50 = 146,734.50 : x
2. Step 2: Convert to fraction form
   70,456.50/146,734.50 = 146,734.50/x
3. Step 3: Cross multiply
   70,456.50x = 146,734.50 × 146,734.50
4. Step 4: Simplify right side
   70,456.50x = 21,531,013,490.25
5. Step 5: Solve for x
   x = 21,531,013,490.25/70,456.50
6. Step 6: Final answer
   x = 305,593.00