Finding the Third Proportional to 723,390 and 1,571,320

Step by Step Solution

1. Step 1: Write the proportion equation
   723,390 : 1,571,320 = 1,571,320 : x
2. Step 2: Convert to fraction form
   723,390/1,571,320 = 1,571,320/x
3. Step 3: Cross multiply
   723,390x = 1,571,320 × 1,571,320
4. Step 4: Simplify right side
   723,390x = 2,469,046,542,400
5. Step 5: Solve for x
   x = 2,469,046,542,400/723,390
6. Step 6: Final answer
   x = 3,413,161.01