Finding the Third Proportional to 172,166 and 374,818

Step by Step Solution

1. Step 1: Write the proportion equation
   172,166 : 374,818 = 374,818 : x
2. Step 2: Convert to fraction form
   172,166/374,818 = 374,818/x
3. Step 3: Cross multiply
   172,166x = 374,818 × 374,818
4. Step 4: Simplify right side
   172,166x = 140,488,533,124
5. Step 5: Solve for x
   x = 140,488,533,124/172,166
6. Step 6: Final answer
   x = 816,006.26