Finding the Third Proportional to 1,397,378 and 2,103,064

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397,378 : 2,103,064 = 2,103,064 : x
2. Step 2: Convert to fraction form
   1,397,378/2,103,064 = 2,103,064/x
3. Step 3: Cross multiply
   1,397,378x = 2,103,064 × 2,103,064
4. Step 4: Simplify right side
   1,397,378x = 4,422,878,188,096
5. Step 5: Solve for x
   x = 4,422,878,188,096/1,397,378
6. Step 6: Final answer
   x = 3,165,126.54