Finding the Third Proportional to 368,364.50 and 805,209.50

Step by Step Solution

1. Step 1: Write the proportion equation
   368,364.50 : 805,209.50 = 805,209.50 : x
2. Step 2: Convert to fraction form
   368,364.50/805,209.50 = 805,209.50/x
3. Step 3: Cross multiply
   368,364.50x = 805,209.50 × 805,209.50
4. Step 4: Simplify right side
   368,364.50x = 648,362,338,890.25
5. Step 5: Solve for x
   x = 648,362,338,890.25/368,364.50
6. Step 6: Final answer
   x = 1,760,110.81