Finding the Third Proportional to 1,218,066 and 2,622,772

Step by Step Solution

1. Step 1: Write the proportion equation
   1,218,066 : 2,622,772 = 2,622,772 : x
2. Step 2: Convert to fraction form
   1,218,066/2,622,772 = 2,622,772/x
3. Step 3: Cross multiply
   1,218,066x = 2,622,772 × 2,622,772
4. Step 4: Simplify right side
   1,218,066x = 6,878,932,963,984
5. Step 5: Solve for x
   x = 6,878,932,963,984/1,218,066
6. Step 6: Final answer
   x = 5,647,422.20