Finding the Third Proportional to 78,034.50 and 161,118.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,034.50 : 161,118.50 = 161,118.50 : x
2. Step 2: Convert to fraction form
   78,034.50/161,118.50 = 161,118.50/x
3. Step 3: Cross multiply
   78,034.50x = 161,118.50 × 161,118.50
4. Step 4: Simplify right side
   78,034.50x = 25,959,171,042.25
5. Step 5: Solve for x
   x = 25,959,171,042.25/78,034.50
6. Step 6: Final answer
   x = 332,662.75