Finding the Third Proportional to 3,914,731 and 8,624,126

Step by Step Solution

1. Step 1: Write the proportion equation
   3,914,731 : 8,624,126 = 8,624,126 : x
2. Step 2: Convert to fraction form
   3,914,731/8,624,126 = 8,624,126/x
3. Step 3: Cross multiply
   3,914,731x = 8,624,126 × 8,624,126
4. Step 4: Simplify right side
   3,914,731x = 74,375,549,263,876
5. Step 5: Solve for x
   x = 74,375,549,263,876/3,914,731
6. Step 6: Final answer
   x = 18,998,891.43