Finding the Third Proportional to 72,693 and 156,843

Step by Step Solution

1. Step 1: Write the proportion equation
   72,693 : 156,843 = 156,843 : x
2. Step 2: Convert to fraction form
   72,693/156,843 = 156,843/x
3. Step 3: Cross multiply
   72,693x = 156,843 × 156,843
4. Step 4: Simplify right side
   72,693x = 24,599,726,649
5. Step 5: Solve for x
   x = 24,599,726,649/72,693
6. Step 6: Final answer
   x = 338,405.72