Finding the Third Proportional to 1,257,402 and 2,572,908

Step by Step Solution

1. Step 1: Write the proportion equation
   1,257,402 : 2,572,908 = 2,572,908 : x
2. Step 2: Convert to fraction form
   1,257,402/2,572,908 = 2,572,908/x
3. Step 3: Cross multiply
   1,257,402x = 2,572,908 × 2,572,908
4. Step 4: Simplify right side
   1,257,402x = 6,619,855,576,464
5. Step 5: Solve for x
   x = 6,619,855,576,464/1,257,402
6. Step 6: Final answer
   x = 5,264,708.96