Finding the Third Proportional to 3,994,836 and 8,628,126

Step by Step Solution

1. Step 1: Write the proportion equation
   3,994,836 : 8,628,126 = 8,628,126 : x
2. Step 2: Convert to fraction form
   3,994,836/8,628,126 = 8,628,126/x
3. Step 3: Cross multiply
   3,994,836x = 8,628,126 × 8,628,126
4. Step 4: Simplify right side
   3,994,836x = 74,444,558,271,876
5. Step 5: Solve for x
   x = 74,444,558,271,876/3,994,836
6. Step 6: Final answer
   x = 18,635,197.61