Finding the Third Proportional to 72,736 and 156,920

Step by Step Solution

1. Step 1: Write the proportion equation
   72,736 : 156,920 = 156,920 : x
2. Step 2: Convert to fraction form
   72,736/156,920 = 156,920/x
3. Step 3: Cross multiply
   72,736x = 156,920 × 156,920
4. Step 4: Simplify right side
   72,736x = 24,623,886,400
5. Step 5: Solve for x
   x = 24,623,886,400/72,736
6. Step 6: Final answer
   x = 338,537.81