Finding the Third Proportional to 1,225,548 and 2,647,872

Step by Step Solution

1. Step 1: Write the proportion equation
   1,225,548 : 2,647,872 = 2,647,872 : x
2. Step 2: Convert to fraction form
   1,225,548/2,647,872 = 2,647,872/x
3. Step 3: Cross multiply
   1,225,548x = 2,647,872 × 2,647,872
4. Step 4: Simplify right side
   1,225,548x = 7,011,226,128,384
5. Step 5: Solve for x
   x = 7,011,226,128,384/1,225,548
6. Step 6: Final answer
   x = 5,720,890.68