Finding the Third Proportional to 81,560 and 179,160

Step by Step Solution

1. Step 1: Write the proportion equation
   81,560 : 179,160 = 179,160 : x
2. Step 2: Convert to fraction form
   81,560/179,160 = 179,160/x
3. Step 3: Cross multiply
   81,560x = 179,160 × 179,160
4. Step 4: Simplify right side
   81,560x = 32,098,305,600
5. Step 5: Solve for x
   x = 32,098,305,600/81,560
6. Step 6: Final answer
   x = 393,554.51