Finding the Third Proportional to 664,832 and 1,431,040

Step by Step Solution

1. Step 1: Write the proportion equation
   664,832 : 1,431,040 = 1,431,040 : x
2. Step 2: Convert to fraction form
   664,832/1,431,040 = 1,431,040/x
3. Step 3: Cross multiply
   664,832x = 1,431,040 × 1,431,040
4. Step 4: Simplify right side
   664,832x = 2,047,875,481,600
5. Step 5: Solve for x
   x = 2,047,875,481,600/664,832
6. Step 6: Final answer
   x = 3,080,290.18