Finding the Third Proportional to 673,287 and 1,439,886

Step by Step Solution

1. Step 1: Write the proportion equation
   673,287 : 1,439,886 = 1,439,886 : x
2. Step 2: Convert to fraction form
   673,287/1,439,886 = 1,439,886/x
3. Step 3: Cross multiply
   673,287x = 1,439,886 × 1,439,886
4. Step 4: Simplify right side
   673,287x = 2,073,271,692,996
5. Step 5: Solve for x
   x = 2,073,271,692,996/673,287
6. Step 6: Final answer
   x = 3,079,328.27