Finding the Third Proportional to 692,638 and 1,036,170

Step by Step Solution

1. Step 1: Write the proportion equation
   692,638 : 1,036,170 = 1,036,170 : x
2. Step 2: Convert to fraction form
   692,638/1,036,170 = 1,036,170/x
3. Step 3: Cross multiply
   692,638x = 1,036,170 × 1,036,170
4. Step 4: Simplify right side
   692,638x = 1,073,648,268,900
5. Step 5: Solve for x
   x = 1,073,648,268,900/692,638
6. Step 6: Final answer
   x = 1,550,085.71