Finding the Third Proportional to 3,245,439 and 5,139,072

Step by Step Solution

1. Step 1: Write the proportion equation
   3,245,439 : 5,139,072 = 5,139,072 : x
2. Step 2: Convert to fraction form
   3,245,439/5,139,072 = 5,139,072/x
3. Step 3: Cross multiply
   3,245,439x = 5,139,072 × 5,139,072
4. Step 4: Simplify right side
   3,245,439x = 26,410,061,021,184
5. Step 5: Solve for x
   x = 26,410,061,021,184/3,245,439
6. Step 6: Final answer
   x = 8,137,592.79