Finding the Third Proportional to 2,291,858 and 4,856,920

Step by Step Solution

1. Step 1: Write the proportion equation
   2,291,858 : 4,856,920 = 4,856,920 : x
2. Step 2: Convert to fraction form
   2,291,858/4,856,920 = 4,856,920/x
3. Step 3: Cross multiply
   2,291,858x = 4,856,920 × 4,856,920
4. Step 4: Simplify right side
   2,291,858x = 23,589,671,886,400
5. Step 5: Solve for x
   x = 23,589,671,886,400/2,291,858
6. Step 6: Final answer
   x = 10,292,815.65