Finding the Third Proportional to 712,992 and 1,585,384

Step by Step Solution

1. Step 1: Write the proportion equation
   712,992 : 1,585,384 = 1,585,384 : x
2. Step 2: Convert to fraction form
   712,992/1,585,384 = 1,585,384/x
3. Step 3: Cross multiply
   712,992x = 1,585,384 × 1,585,384
4. Step 4: Simplify right side
   712,992x = 2,513,442,427,456
5. Step 5: Solve for x
   x = 2,513,442,427,456/712,992
6. Step 6: Final answer
   x = 3,525,204.25