Finding the Third Proportional to 3,558,870 and 8,397,624

Step by Step Solution

1. Step 1: Write the proportion equation
   3,558,870 : 8,397,624 = 8,397,624 : x
2. Step 2: Convert to fraction form
   3,558,870/8,397,624 = 8,397,624/x
3. Step 3: Cross multiply
   3,558,870x = 8,397,624 × 8,397,624
4. Step 4: Simplify right side
   3,558,870x = 70,520,088,845,376
5. Step 5: Solve for x
   x = 70,520,088,845,376/3,558,870
6. Step 6: Final answer
   x = 19,815,303.41