Finding the Third Proportional to 86,488 and 179,456

Step by Step Solution

1. Step 1: Write the proportion equation
   86,488 : 179,456 = 179,456 : x
2. Step 2: Convert to fraction form
   86,488/179,456 = 179,456/x
3. Step 3: Cross multiply
   86,488x = 179,456 × 179,456
4. Step 4: Simplify right side
   86,488x = 32,204,455,936
5. Step 5: Solve for x
   x = 32,204,455,936/86,488
6. Step 6: Final answer
   x = 372,357.51