Finding the Third Proportional to 1,238,469 and 2,561,894

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,469 : 2,561,894 = 2,561,894 : x
2. Step 2: Convert to fraction form
   1,238,469/2,561,894 = 2,561,894/x
3. Step 3: Cross multiply
   1,238,469x = 2,561,894 × 2,561,894
4. Step 4: Simplify right side
   1,238,469x = 6,563,300,867,236
5. Step 5: Solve for x
   x = 6,563,300,867,236/1,238,469
6. Step 6: Final answer
   x = 5,299,527.78