Finding the Third Proportional to 4,320,876 and 9,419,352

Step by Step Solution

1. Step 1: Write the proportion equation
   4,320,876 : 9,419,352 = 9,419,352 : x
2. Step 2: Convert to fraction form
   4,320,876/9,419,352 = 9,419,352/x
3. Step 3: Cross multiply
   4,320,876x = 9,419,352 × 9,419,352
4. Step 4: Simplify right side
   4,320,876x = 88,724,192,099,904
5. Step 5: Solve for x
   x = 88,724,192,099,904/4,320,876
6. Step 6: Final answer
   x = 20,533,843.62