Finding the Third Proportional to 687,648 and 1,032,771

Step by Step Solution

1. Step 1: Write the proportion equation
   687,648 : 1,032,771 = 1,032,771 : x
2. Step 2: Convert to fraction form
   687,648/1,032,771 = 1,032,771/x
3. Step 3: Cross multiply
   687,648x = 1,032,771 × 1,032,771
4. Step 4: Simplify right side
   687,648x = 1,066,615,938,441
5. Step 5: Solve for x
   x = 1,066,615,938,441/687,648
6. Step 6: Final answer
   x = 1,551,107.45