Finding the Third Proportional to 712,986 and 1,585,372

Step by Step Solution

1. Step 1: Write the proportion equation
   712,986 : 1,585,372 = 1,585,372 : x
2. Step 2: Convert to fraction form
   712,986/1,585,372 = 1,585,372/x
3. Step 3: Cross multiply
   712,986x = 1,585,372 × 1,585,372
4. Step 4: Simplify right side
   712,986x = 2,513,404,378,384
5. Step 5: Solve for x
   x = 2,513,404,378,384/712,986
6. Step 6: Final answer
   x = 3,525,180.55