Finding the Third Proportional to 623,988 and 1,004,886

Step by Step Solution

1. Step 1: Write the proportion equation
   623,988 : 1,004,886 = 1,004,886 : x
2. Step 2: Convert to fraction form
   623,988/1,004,886 = 1,004,886/x
3. Step 3: Cross multiply
   623,988x = 1,004,886 × 1,004,886
4. Step 4: Simplify right side
   623,988x = 1,009,795,872,996
5. Step 5: Solve for x
   x = 1,009,795,872,996/623,988
6. Step 6: Final answer
   x = 1,618,293.74