Finding the Third Proportional to 3,571,646 and 5,390,685

Step by Step Solution

1. Step 1: Write the proportion equation
   3,571,646 : 5,390,685 = 5,390,685 : x
2. Step 2: Convert to fraction form
   3,571,646/5,390,685 = 5,390,685/x
3. Step 3: Cross multiply
   3,571,646x = 5,390,685 × 5,390,685
4. Step 4: Simplify right side
   3,571,646x = 29,059,484,769,225
5. Step 5: Solve for x
   x = 29,059,484,769,225/3,571,646
6. Step 6: Final answer
   x = 8,136,160.41