Finding the Third Proportional to 368,478 and 805,692.50

Step by Step Solution

1. Step 1: Write the proportion equation
   368,478 : 805,692.50 = 805,692.50 : x
2. Step 2: Convert to fraction form
   368,478/805,692.50 = 805,692.50/x
3. Step 3: Cross multiply
   368,478x = 805,692.50 × 805,692.50
4. Step 4: Simplify right side
   368,478x = 649,140,404,556.25
5. Step 5: Solve for x
   x = 649,140,404,556.25/368,478
6. Step 6: Final answer
   x = 1,761,680.22