Finding the Third Proportional to 1,273,758 and 1,858,126

Step by Step Solution

1. Step 1: Write the proportion equation
   1,273,758 : 1,858,126 = 1,858,126 : x
2. Step 2: Convert to fraction form
   1,273,758/1,858,126 = 1,858,126/x
3. Step 3: Cross multiply
   1,273,758x = 1,858,126 × 1,858,126
4. Step 4: Simplify right side
   1,273,758x = 3,452,632,231,876
5. Step 5: Solve for x
   x = 3,452,632,231,876/1,273,758
6. Step 6: Final answer
   x = 2,710,587.28