Finding the Third Proportional to 715,806 and 1,557,570

Step by Step Solution

1. Step 1: Write the proportion equation
   715,806 : 1,557,570 = 1,557,570 : x
2. Step 2: Convert to fraction form
   715,806/1,557,570 = 1,557,570/x
3. Step 3: Cross multiply
   715,806x = 1,557,570 × 1,557,570
4. Step 4: Simplify right side
   715,806x = 2,426,024,304,900
5. Step 5: Solve for x
   x = 2,426,024,304,900/715,806
6. Step 6: Final answer
   x = 3,389,220.41