Finding the Third Proportional to 171,018 and 374,870

Step by Step Solution

1. Step 1: Write the proportion equation
   171,018 : 374,870 = 374,870 : x
2. Step 2: Convert to fraction form
   171,018/374,870 = 374,870/x
3. Step 3: Cross multiply
   171,018x = 374,870 × 374,870
4. Step 4: Simplify right side
   171,018x = 140,527,516,900
5. Step 5: Solve for x
   x = 140,527,516,900/171,018
6. Step 6: Final answer
   x = 821,711.85