Finding the Third Proportional to 3,940,865 and 8,529,442

Step by Step Solution

1. Step 1: Write the proportion equation
   3,940,865 : 8,529,442 = 8,529,442 : x
2. Step 2: Convert to fraction form
   3,940,865/8,529,442 = 8,529,442/x
3. Step 3: Cross multiply
   3,940,865x = 8,529,442 × 8,529,442
4. Step 4: Simplify right side
   3,940,865x = 72,751,380,831,364
5. Step 5: Solve for x
   x = 72,751,380,831,364/3,940,865
6. Step 6: Final answer
   x = 18,460,764.54