Finding the Third Proportional to 71,672 and 111,350

Step by Step Solution

1. Step 1: Write the proportion equation
   71,672 : 111,350 = 111,350 : x
2. Step 2: Convert to fraction form
   71,672/111,350 = 111,350/x
3. Step 3: Cross multiply
   71,672x = 111,350 × 111,350
4. Step 4: Simplify right side
   71,672x = 12,398,822,500
5. Step 5: Solve for x
   x = 12,398,822,500/71,672
6. Step 6: Final answer
   x = 172,993.95