Finding the Third Proportional to 648,914 and 1,397,660

Step by Step Solution

1. Step 1: Write the proportion equation
   648,914 : 1,397,660 = 1,397,660 : x
2. Step 2: Convert to fraction form
   648,914/1,397,660 = 1,397,660/x
3. Step 3: Cross multiply
   648,914x = 1,397,660 × 1,397,660
4. Step 4: Simplify right side
   648,914x = 1,953,453,475,600
5. Step 5: Solve for x
   x = 1,953,453,475,600/648,914
6. Step 6: Final answer
   x = 3,010,342.63