Finding the Third Proportional to 3,558,912 and 8,397,704

Step by Step Solution

1. Step 1: Write the proportion equation
   3,558,912 : 8,397,704 = 8,397,704 : x
2. Step 2: Convert to fraction form
   3,558,912/8,397,704 = 8,397,704/x
3. Step 3: Cross multiply
   3,558,912x = 8,397,704 × 8,397,704
4. Step 4: Simplify right side
   3,558,912x = 70,521,432,471,616
5. Step 5: Solve for x
   x = 70,521,432,471,616/3,558,912
6. Step 6: Final answer
   x = 19,815,447.10