Finding the Third Proportional to 1,267,442 and 2,818,258

Step by Step Solution

1. Step 1: Write the proportion equation
   1,267,442 : 2,818,258 = 2,818,258 : x
2. Step 2: Convert to fraction form
   1,267,442/2,818,258 = 2,818,258/x
3. Step 3: Cross multiply
   1,267,442x = 2,818,258 × 2,818,258
4. Step 4: Simplify right side
   1,267,442x = 7,942,578,154,564
5. Step 5: Solve for x
   x = 7,942,578,154,564/1,267,442
6. Step 6: Final answer
   x = 6,266,620.61