Finding the Third Proportional to 5,919,811 and 8,855,920

Step by Step Solution

1. Step 1: Write the proportion equation
   5,919,811 : 8,855,920 = 8,855,920 : x
2. Step 2: Convert to fraction form
   5,919,811/8,855,920 = 8,855,920/x
3. Step 3: Cross multiply
   5,919,811x = 8,855,920 × 8,855,920
4. Step 4: Simplify right side
   5,919,811x = 78,427,319,046,400
5. Step 5: Solve for x
   x = 78,427,319,046,400/5,919,811
6. Step 6: Final answer
   x = 13,248,280.91