Finding the Third Proportional to 2,431,319 and 5,290,747

Step by Step Solution

1. Step 1: Write the proportion equation
   2,431,319 : 5,290,747 = 5,290,747 : x
2. Step 2: Convert to fraction form
   2,431,319/5,290,747 = 5,290,747/x
3. Step 3: Cross multiply
   2,431,319x = 5,290,747 × 5,290,747
4. Step 4: Simplify right side
   2,431,319x = 27,992,003,818,009
5. Step 5: Solve for x
   x = 27,992,003,818,009/2,431,319
6. Step 6: Final answer
   x = 11,513,093.85