Finding the Third Proportional to 72,909 and 156,894

Step by Step Solution

1. Step 1: Write the proportion equation
   72,909 : 156,894 = 156,894 : x
2. Step 2: Convert to fraction form
   72,909/156,894 = 156,894/x
3. Step 3: Cross multiply
   72,909x = 156,894 × 156,894
4. Step 4: Simplify right side
   72,909x = 24,615,727,236
5. Step 5: Solve for x
   x = 24,615,727,236/72,909
6. Step 6: Final answer
   x = 337,622.61