Finding the Third Proportional to 687,637 and 1,051,223

Step by Step Solution

1. Step 1: Write the proportion equation
   687,637 : 1,051,223 = 1,051,223 : x
2. Step 2: Convert to fraction form
   687,637/1,051,223 = 1,051,223/x
3. Step 3: Cross multiply
   687,637x = 1,051,223 × 1,051,223
4. Step 4: Simplify right side
   687,637x = 1,105,069,795,729
5. Step 5: Solve for x
   x = 1,105,069,795,729/687,637
6. Step 6: Final answer
   x = 1,607,054.01