Finding the Third Proportional to 624,584 and 1,343,890

Step by Step Solution

1. Step 1: Write the proportion equation
   624,584 : 1,343,890 = 1,343,890 : x
2. Step 2: Convert to fraction form
   624,584/1,343,890 = 1,343,890/x
3. Step 3: Cross multiply
   624,584x = 1,343,890 × 1,343,890
4. Step 4: Simplify right side
   624,584x = 1,806,040,332,100
5. Step 5: Solve for x
   x = 1,806,040,332,100/624,584
6. Step 6: Final answer
   x = 2,891,589.17