Finding the Third Proportional to 78,479 and 161,092.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,479 : 161,092.50 = 161,092.50 : x
2. Step 2: Convert to fraction form
   78,479/161,092.50 = 161,092.50/x
3. Step 3: Cross multiply
   78,479x = 161,092.50 × 161,092.50
4. Step 4: Simplify right side
   78,479x = 25,950,793,556.25
5. Step 5: Solve for x
   x = 25,950,793,556.25/78,479
6. Step 6: Final answer
   x = 330,671.82