Finding the Third Proportional to 4,919,379 and 10,786,458

Step by Step Solution

1. Step 1: Write the proportion equation
   4,919,379 : 10,786,458 = 10,786,458 : x
2. Step 2: Convert to fraction form
   4,919,379/10,786,458 = 10,786,458/x
3. Step 3: Cross multiply
   4,919,379x = 10,786,458 × 10,786,458
4. Step 4: Simplify right side
   4,919,379x = 116,347,676,185,764
5. Step 5: Solve for x
   x = 116,347,676,185,764/4,919,379
6. Step 6: Final answer
   x = 23,650,886.87