Finding the Third Proportional to 71,939.25 and 146,734.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,939.25 : 146,734.50 = 146,734.50 : x
2. Step 2: Convert to fraction form
   71,939.25/146,734.50 = 146,734.50/x
3. Step 3: Cross multiply
   71,939.25x = 146,734.50 × 146,734.50
4. Step 4: Simplify right side
   71,939.25x = 21,531,013,490.25
5. Step 5: Solve for x
   x = 21,531,013,490.25/71,939.25
6. Step 6: Final answer
   x = 299,294.38