Finding the Third Proportional to 86,500 and 179,480

Step by Step Solution

1. Step 1: Write the proportion equation
   86,500 : 179,480 = 179,480 : x
2. Step 2: Convert to fraction form
   86,500/179,480 = 179,480/x
3. Step 3: Cross multiply
   86,500x = 179,480 × 179,480
4. Step 4: Simplify right side
   86,500x = 32,213,070,400
5. Step 5: Solve for x
   x = 32,213,070,400/86,500
6. Step 6: Final answer
   x = 372,405.44