Finding the Third Proportional to 624,441 and 892,309.50

Step by Step Solution

1. Step 1: Write the proportion equation
   624,441 : 892,309.50 = 892,309.50 : x
2. Step 2: Convert to fraction form
   624,441/892,309.50 = 892,309.50/x
3. Step 3: Cross multiply
   624,441x = 892,309.50 × 892,309.50
4. Step 4: Simplify right side
   624,441x = 796,216,243,790.25
5. Step 5: Solve for x
   x = 796,216,243,790.25/624,441
6. Step 6: Final answer
   x = 1,275,086.43