Finding the Third Proportional to 1,266,320 and 1,810,720

Step by Step Solution

1. Step 1: Write the proportion equation
   1,266,320 : 1,810,720 = 1,810,720 : x
2. Step 2: Convert to fraction form
   1,266,320/1,810,720 = 1,810,720/x
3. Step 3: Cross multiply
   1,266,320x = 1,810,720 × 1,810,720
4. Step 4: Simplify right side
   1,266,320x = 3,278,706,918,400
5. Step 5: Solve for x
   x = 3,278,706,918,400/1,266,320
6. Step 6: Final answer
   x = 2,589,161.44