Finding the Third Proportional to 5,129,538 and 8,004,858

Step by Step Solution

1. Step 1: Write the proportion equation
   5,129,538 : 8,004,858 = 8,004,858 : x
2. Step 2: Convert to fraction form
   5,129,538/8,004,858 = 8,004,858/x
3. Step 3: Cross multiply
   5,129,538x = 8,004,858 × 8,004,858
4. Step 4: Simplify right side
   5,129,538x = 64,077,751,600,164
5. Step 5: Solve for x
   x = 64,077,751,600,164/5,129,538
6. Step 6: Final answer
   x = 12,491,914.79