Finding the Third Proportional to 1,078,389 and 2,308,228

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078,389 : 2,308,228 = 2,308,228 : x
2. Step 2: Convert to fraction form
   1,078,389/2,308,228 = 2,308,228/x
3. Step 3: Cross multiply
   1,078,389x = 2,308,228 × 2,308,228
4. Step 4: Simplify right side
   1,078,389x = 5,327,916,499,984
5. Step 5: Solve for x
   x = 5,327,916,499,984/1,078,389
6. Step 6: Final answer
   x = 4,940,625.79