Finding the Third Proportional to 1,257,398 and 2,572,892

Step by Step Solution

1. Step 1: Write the proportion equation
   1,257,398 : 2,572,892 = 2,572,892 : x
2. Step 2: Convert to fraction form
   1,257,398/2,572,892 = 2,572,892/x
3. Step 3: Cross multiply
   1,257,398x = 2,572,892 × 2,572,892
4. Step 4: Simplify right side
   1,257,398x = 6,619,773,243,664
5. Step 5: Solve for x
   x = 6,619,773,243,664/1,257,398
6. Step 6: Final answer
   x = 5,264,660.23