Finding the Third Proportional to 3,940,922 and 8,510,548

Step by Step Solution

1. Step 1: Write the proportion equation
   3,940,922 : 8,510,548 = 8,510,548 : x
2. Step 2: Convert to fraction form
   3,940,922/8,510,548 = 8,510,548/x
3. Step 3: Cross multiply
   3,940,922x = 8,510,548 × 8,510,548
4. Step 4: Simplify right side
   3,940,922x = 72,429,427,260,304
5. Step 5: Solve for x
   x = 72,429,427,260,304/3,940,922
6. Step 6: Final answer
   x = 18,378,802.54