Finding the Third Proportional to 667,485 and 1,382,280

Step by Step Solution

1. Step 1: Write the proportion equation
   667,485 : 1,382,280 = 1,382,280 : x
2. Step 2: Convert to fraction form
   667,485/1,382,280 = 1,382,280/x
3. Step 3: Cross multiply
   667,485x = 1,382,280 × 1,382,280
4. Step 4: Simplify right side
   667,485x = 1,910,697,998,400
5. Step 5: Solve for x
   x = 1,910,697,998,400/667,485
6. Step 6: Final answer
   x = 2,862,533.24