Finding the Third Proportional to 1,265,802 and 2,578,608

Step by Step Solution

1. Step 1: Write the proportion equation
   1,265,802 : 2,578,608 = 2,578,608 : x
2. Step 2: Convert to fraction form
   1,265,802/2,578,608 = 2,578,608/x
3. Step 3: Cross multiply
   1,265,802x = 2,578,608 × 2,578,608
4. Step 4: Simplify right side
   1,265,802x = 6,649,219,217,664
5. Step 5: Solve for x
   x = 6,649,219,217,664/1,265,802
6. Step 6: Final answer
   x = 5,252,969.44