Finding the Third Proportional to 441,303 and 681,907.50

Step by Step Solution

1. Step 1: Write the proportion equation
   441,303 : 681,907.50 = 681,907.50 : x
2. Step 2: Convert to fraction form
   441,303/681,907.50 = 681,907.50/x
3. Step 3: Cross multiply
   441,303x = 681,907.50 × 681,907.50
4. Step 4: Simplify right side
   441,303x = 464,997,838,556.25
5. Step 5: Solve for x
   x = 464,997,838,556.25/441,303
6. Step 6: Final answer
   x = 1,053,692.90