Finding the Third Proportional to 4,112,160 and 8,910,768

Step by Step Solution

1. Step 1: Write the proportion equation
   4,112,160 : 8,910,768 = 8,910,768 : x
2. Step 2: Convert to fraction form
   4,112,160/8,910,768 = 8,910,768/x
3. Step 3: Cross multiply
   4,112,160x = 8,910,768 × 8,910,768
4. Step 4: Simplify right side
   4,112,160x = 79,401,786,349,824
5. Step 5: Solve for x
   x = 79,401,786,349,824/4,112,160
6. Step 6: Final answer
   x = 19,309,021.62