Finding the Third Proportional to 368,369 and 805,211.50

Step by Step Solution

1. Step 1: Write the proportion equation
   368,369 : 805,211.50 = 805,211.50 : x
2. Step 2: Convert to fraction form
   368,369/805,211.50 = 805,211.50/x
3. Step 3: Cross multiply
   368,369x = 805,211.50 × 805,211.50
4. Step 4: Simplify right side
   368,369x = 648,365,559,732.25
5. Step 5: Solve for x
   x = 648,365,559,732.25/368,369
6. Step 6: Final answer
   x = 1,760,098.05