Finding the Third Proportional to 72,680 and 160,904

Step by Step Solution

1. Step 1: Write the proportion equation
   72,680 : 160,904 = 160,904 : x
2. Step 2: Convert to fraction form
   72,680/160,904 = 160,904/x
3. Step 3: Cross multiply
   72,680x = 160,904 × 160,904
4. Step 4: Simplify right side
   72,680x = 25,890,097,216
5. Step 5: Solve for x
   x = 25,890,097,216/72,680
6. Step 6: Final answer
   x = 356,220.38