Finding the Third Proportional to 808,530 and 1,640,819

Step by Step Solution

1. Step 1: Write the proportion equation
   808,530 : 1,640,819 = 1,640,819 : x
2. Step 2: Convert to fraction form
   808,530/1,640,819 = 1,640,819/x
3. Step 3: Cross multiply
   808,530x = 1,640,819 × 1,640,819
4. Step 4: Simplify right side
   808,530x = 2,692,286,990,761
5. Step 5: Solve for x
   x = 2,692,286,990,761/808,530
6. Step 6: Final answer
   x = 3,329,854.17