Finding the Third Proportional to 1,228,905 and 2,673,228

Step by Step Solution

1. Step 1: Write the proportion equation
   1,228,905 : 2,673,228 = 2,673,228 : x
2. Step 2: Convert to fraction form
   1,228,905/2,673,228 = 2,673,228/x
3. Step 3: Cross multiply
   1,228,905x = 2,673,228 × 2,673,228
4. Step 4: Simplify right side
   1,228,905x = 7,146,147,939,984
5. Step 5: Solve for x
   x = 7,146,147,939,984/1,228,905
6. Step 6: Final answer
   x = 5,815,053.19