Finding the Third Proportional to 3,657,571 and 8,039,131

Step by Step Solution

1. Step 1: Write the proportion equation
   3,657,571 : 8,039,131 = 8,039,131 : x
2. Step 2: Convert to fraction form
   3,657,571/8,039,131 = 8,039,131/x
3. Step 3: Cross multiply
   3,657,571x = 8,039,131 × 8,039,131
4. Step 4: Simplify right side
   3,657,571x = 64,627,627,235,161
5. Step 5: Solve for x
   x = 64,627,627,235,161/3,657,571
6. Step 6: Final answer
   x = 17,669,548.24