Finding the Third Proportional to 72,869 and 156,809

Step by Step Solution

1. Step 1: Write the proportion equation
   72,869 : 156,809 = 156,809 : x
2. Step 2: Convert to fraction form
   72,869/156,809 = 156,809/x
3. Step 3: Cross multiply
   72,869x = 156,809 × 156,809
4. Step 4: Simplify right side
   72,869x = 24,589,062,481
5. Step 5: Solve for x
   x = 24,589,062,481/72,869
6. Step 6: Final answer
   x = 337,442.02