Finding the Third Proportional to 4,112,520 and 8,911,434

Step by Step Solution

1. Step 1: Write the proportion equation
   4,112,520 : 8,911,434 = 8,911,434 : x
2. Step 2: Convert to fraction form
   4,112,520/8,911,434 = 8,911,434/x
3. Step 3: Cross multiply
   4,112,520x = 8,911,434 × 8,911,434
4. Step 4: Simplify right side
   4,112,520x = 79,413,655,936,356
5. Step 5: Solve for x
   x = 79,413,655,936,356/4,112,520
6. Step 6: Final answer
   x = 19,310,217.56