Finding the Third Proportional to 1,171,520 and 2,557,888

Step by Step Solution

1. Step 1: Write the proportion equation
   1,171,520 : 2,557,888 = 2,557,888 : x
2. Step 2: Convert to fraction form
   1,171,520/2,557,888 = 2,557,888/x
3. Step 3: Cross multiply
   1,171,520x = 2,557,888 × 2,557,888
4. Step 4: Simplify right side
   1,171,520x = 6,542,791,020,544
5. Step 5: Solve for x
   x = 6,542,791,020,544/1,171,520
6. Step 6: Final answer
   x = 5,584,873.52