Finding the Third Proportional to 362,140.50 and 779,505

Step by Step Solution

1. Step 1: Write the proportion equation
   362,140.50 : 779,505 = 779,505 : x
2. Step 2: Convert to fraction form
   362,140.50/779,505 = 779,505/x
3. Step 3: Cross multiply
   362,140.50x = 779,505 × 779,505
4. Step 4: Simplify right side
   362,140.50x = 607,628,045,025
5. Step 5: Solve for x
   x = 607,628,045,025/362,140.50
6. Step 6: Final answer
   x = 1,677,879.29