Finding the Third Proportional to 814,643 and 1,139,462

Step by Step Solution

1. Step 1: Write the proportion equation
   814,643 : 1,139,462 = 1,139,462 : x
2. Step 2: Convert to fraction form
   814,643/1,139,462 = 1,139,462/x
3. Step 3: Cross multiply
   814,643x = 1,139,462 × 1,139,462
4. Step 4: Simplify right side
   814,643x = 1,298,373,649,444
5. Step 5: Solve for x
   x = 1,298,373,649,444/814,643
6. Step 6: Final answer
   x = 1,593,794.64