Finding the Third Proportional to 1,242,648 and 2,666,544

Step by Step Solution

1. Step 1: Write the proportion equation
   1,242,648 : 2,666,544 = 2,666,544 : x
2. Step 2: Convert to fraction form
   1,242,648/2,666,544 = 2,666,544/x
3. Step 3: Cross multiply
   1,242,648x = 2,666,544 × 2,666,544
4. Step 4: Simplify right side
   1,242,648x = 7,110,456,903,936
5. Step 5: Solve for x
   x = 7,110,456,903,936/1,242,648
6. Step 6: Final answer
   x = 5,722,020.16