Finding the Third Proportional to 1,221,274 and 2,604,858

Step by Step Solution

1. Step 1: Write the proportion equation
   1,221,274 : 2,604,858 = 2,604,858 : x
2. Step 2: Convert to fraction form
   1,221,274/2,604,858 = 2,604,858/x
3. Step 3: Cross multiply
   1,221,274x = 2,604,858 × 2,604,858
4. Step 4: Simplify right side
   1,221,274x = 6,785,285,200,164
5. Step 5: Solve for x
   x = 6,785,285,200,164/1,221,274
6. Step 6: Final answer
   x = 5,555,907.36