Finding the Third Proportional to 687,555 and 1,010,270

Step by Step Solution

1. Step 1: Write the proportion equation
   687,555 : 1,010,270 = 1,010,270 : x
2. Step 2: Convert to fraction form
   687,555/1,010,270 = 1,010,270/x
3. Step 3: Cross multiply
   687,555x = 1,010,270 × 1,010,270
4. Step 4: Simplify right side
   687,555x = 1,020,645,472,900
5. Step 5: Solve for x
   x = 1,020,645,472,900/687,555
6. Step 6: Final answer
   x = 1,484,456.48