Finding the Third Proportional to 4,262,912 and 8,919,936

Step by Step Solution

1. Step 1: Write the proportion equation
   4,262,912 : 8,919,936 = 8,919,936 : x
2. Step 2: Convert to fraction form
   4,262,912/8,919,936 = 8,919,936/x
3. Step 3: Cross multiply
   4,262,912x = 8,919,936 × 8,919,936
4. Step 4: Simplify right side
   4,262,912x = 79,565,258,244,096
5. Step 5: Solve for x
   x = 79,565,258,244,096/4,262,912
6. Step 6: Final answer
   x = 18,664,532.19