Finding the Third Proportional to 395,877.38 and 805,788

Step by Step Solution

1. Step 1: Write the proportion equation
   395,877.38 : 805,788 = 805,788 : x
2. Step 2: Convert to fraction form
   395,877.38/805,788 = 805,788/x
3. Step 3: Cross multiply
   395,877.38x = 805,788 × 805,788
4. Step 4: Simplify right side
   395,877.38x = 649,294,300,944
5. Step 5: Solve for x
   x = 649,294,300,944/395,877.38
6. Step 6: Final answer
   x = 1,640,139.96