Finding the Third Proportional to 1,178,712 and 2,557,008

Step by Step Solution

1. Step 1: Write the proportion equation
   1,178,712 : 2,557,008 = 2,557,008 : x
2. Step 2: Convert to fraction form
   1,178,712/2,557,008 = 2,557,008/x
3. Step 3: Cross multiply
   1,178,712x = 2,557,008 × 2,557,008
4. Step 4: Simplify right side
   1,178,712x = 6,538,289,912,064
5. Step 5: Solve for x
   x = 6,538,289,912,064/1,178,712
6. Step 6: Final answer
   x = 5,546,978.32