Finding the Third Proportional to 678,311 and 1,049,826

Step by Step Solution

1. Step 1: Write the proportion equation
   678,311 : 1,049,826 = 1,049,826 : x
2. Step 2: Convert to fraction form
   678,311/1,049,826 = 1,049,826/x
3. Step 3: Cross multiply
   678,311x = 1,049,826 × 1,049,826
4. Step 4: Simplify right side
   678,311x = 1,102,134,630,276
5. Step 5: Solve for x
   x = 1,102,134,630,276/678,311
6. Step 6: Final answer
   x = 1,624,821.99