Finding the Third Proportional to 1,171,521 and 2,557,890

Step by Step Solution

1. Step 1: Write the proportion equation
   1,171,521 : 2,557,890 = 2,557,890 : x
2. Step 2: Convert to fraction form
   1,171,521/2,557,890 = 2,557,890/x
3. Step 3: Cross multiply
   1,171,521x = 2,557,890 × 2,557,890
4. Step 4: Simplify right side
   1,171,521x = 6,542,801,252,100
5. Step 5: Solve for x
   x = 6,542,801,252,100/1,171,521
6. Step 6: Final answer
   x = 5,584,877.48