Finding the Third Proportional to 78,961.50 and 161,095.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,961.50 : 161,095.50 = 161,095.50 : x
2. Step 2: Convert to fraction form
   78,961.50/161,095.50 = 161,095.50/x
3. Step 3: Cross multiply
   78,961.50x = 161,095.50 × 161,095.50
4. Step 4: Simplify right side
   78,961.50x = 25,951,760,120.25
5. Step 5: Solve for x
   x = 25,951,760,120.25/78,961.50
6. Step 6: Final answer
   x = 328,663.46