Finding the Third Proportional to 5,663,957 and 8,389,761

Step by Step Solution

1. Step 1: Write the proportion equation
   5,663,957 : 8,389,761 = 8,389,761 : x
2. Step 2: Convert to fraction form
   5,663,957/8,389,761 = 8,389,761/x
3. Step 3: Cross multiply
   5,663,957x = 8,389,761 × 8,389,761
4. Step 4: Simplify right side
   5,663,957x = 70,388,089,637,121
5. Step 5: Solve for x
   x = 70,388,089,637,121/5,663,957
6. Step 6: Final answer
   x = 12,427,370.06