Finding the Third Proportional to 441,434 and 683,386.50

Step by Step Solution

1. Step 1: Write the proportion equation
   441,434 : 683,386.50 = 683,386.50 : x
2. Step 2: Convert to fraction form
   441,434/683,386.50 = 683,386.50/x
3. Step 3: Cross multiply
   441,434x = 683,386.50 × 683,386.50
4. Step 4: Simplify right side
   441,434x = 467,017,108,382.25
5. Step 5: Solve for x
   x = 467,017,108,382.25/441,434
6. Step 6: Final answer
   x = 1,057,954.55