Finding the Third Proportional to 1,448,997 and 2,129,189

Step by Step Solution

1. Step 1: Write the proportion equation
   1,448,997 : 2,129,189 = 2,129,189 : x
2. Step 2: Convert to fraction form
   1,448,997/2,129,189 = 2,129,189/x
3. Step 3: Cross multiply
   1,448,997x = 2,129,189 × 2,129,189
4. Step 4: Simplify right side
   1,448,997x = 4,533,445,797,721
5. Step 5: Solve for x
   x = 4,533,445,797,721/1,448,997
6. Step 6: Final answer
   x = 3,128,678.53