Finding the Third Proportional to 1,214,824 and 2,658,440

Step by Step Solution

1. Step 1: Write the proportion equation
   1,214,824 : 2,658,440 = 2,658,440 : x
2. Step 2: Convert to fraction form
   1,214,824/2,658,440 = 2,658,440/x
3. Step 3: Cross multiply
   1,214,824x = 2,658,440 × 2,658,440
4. Step 4: Simplify right side
   1,214,824x = 7,067,303,233,600
5. Step 5: Solve for x
   x = 7,067,303,233,600/1,214,824
6. Step 6: Final answer
   x = 5,817,553.19