Finding the Third Proportional to 670,040 and 1,023,420

Step by Step Solution

1. Step 1: Write the proportion equation
   670,040 : 1,023,420 = 1,023,420 : x
2. Step 2: Convert to fraction form
   670,040/1,023,420 = 1,023,420/x
3. Step 3: Cross multiply
   670,040x = 1,023,420 × 1,023,420
4. Step 4: Simplify right side
   670,040x = 1,047,388,496,400
5. Step 5: Solve for x
   x = 1,047,388,496,400/670,040
6. Step 6: Final answer
   x = 1,563,173.09