Finding the Third Proportional to 374,179 and 820,790

Step by Step Solution

1. Step 1: Write the proportion equation
   374,179 : 820,790 = 820,790 : x
2. Step 2: Convert to fraction form
   374,179/820,790 = 820,790/x
3. Step 3: Cross multiply
   374,179x = 820,790 × 820,790
4. Step 4: Simplify right side
   374,179x = 673,696,224,100
5. Step 5: Solve for x
   x = 673,696,224,100/374,179
6. Step 6: Final answer
   x = 1,800,465.08