Finding the Third Proportional to 2,390,819 and 5,159,458

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390,819 : 5,159,458 = 5,159,458 : x
2. Step 2: Convert to fraction form
   2,390,819/5,159,458 = 5,159,458/x
3. Step 3: Cross multiply
   2,390,819x = 5,159,458 × 5,159,458
4. Step 4: Simplify right side
   2,390,819x = 26,620,006,853,764
5. Step 5: Solve for x
   x = 26,620,006,853,764/2,390,819
6. Step 6: Final answer
   x = 11,134,262.72