Finding the Third Proportional to 4,112,138 and 8,910,724

Step by Step Solution

1. Step 1: Write the proportion equation
   4,112,138 : 8,910,724 = 8,910,724 : x
2. Step 2: Convert to fraction form
   4,112,138/8,910,724 = 8,910,724/x
3. Step 3: Cross multiply
   4,112,138x = 8,910,724 × 8,910,724
4. Step 4: Simplify right side
   4,112,138x = 79,401,002,204,176
5. Step 5: Solve for x
   x = 79,401,002,204,176/4,112,138
6. Step 6: Final answer
   x = 19,308,934.23