Finding the Third Proportional to 335,083.50 and 679,887

Step by Step Solution

1. Step 1: Write the proportion equation
   335,083.50 : 679,887 = 679,887 : x
2. Step 2: Convert to fraction form
   335,083.50/679,887 = 679,887/x
3. Step 3: Cross multiply
   335,083.50x = 679,887 × 679,887
4. Step 4: Simplify right side
   335,083.50x = 462,246,332,769
5. Step 5: Solve for x
   x = 462,246,332,769/335,083.50
6. Step 6: Final answer
   x = 1,379,495.95