Finding the Third Proportional to 1,263,306 and 2,739,438

Step by Step Solution

1. Step 1: Write the proportion equation
   1,263,306 : 2,739,438 = 2,739,438 : x
2. Step 2: Convert to fraction form
   1,263,306/2,739,438 = 2,739,438/x
3. Step 3: Cross multiply
   1,263,306x = 2,739,438 × 2,739,438
4. Step 4: Simplify right side
   1,263,306x = 7,504,520,555,844
5. Step 5: Solve for x
   x = 7,504,520,555,844/1,263,306
6. Step 6: Final answer
   x = 5,940,382.26