Finding the Third Proportional to 692,712 and 1,439,856

Step by Step Solution

1. Step 1: Write the proportion equation
   692,712 : 1,439,856 = 1,439,856 : x
2. Step 2: Convert to fraction form
   692,712/1,439,856 = 1,439,856/x
3. Step 3: Cross multiply
   692,712x = 1,439,856 × 1,439,856
4. Step 4: Simplify right side
   692,712x = 2,073,185,300,736
5. Step 5: Solve for x
   x = 2,073,185,300,736/692,712
6. Step 6: Final answer
   x = 2,992,853.16