Finding the Third Proportional to 361,804.50 and 771,687

Step by Step Solution

1. Step 1: Write the proportion equation
   361,804.50 : 771,687 = 771,687 : x
2. Step 2: Convert to fraction form
   361,804.50/771,687 = 771,687/x
3. Step 3: Cross multiply
   361,804.50x = 771,687 × 771,687
4. Step 4: Simplify right side
   361,804.50x = 595,500,825,969
5. Step 5: Solve for x
   x = 595,500,825,969/361,804.50
6. Step 6: Final answer
   x = 1,645,918.79