Finding the Third Proportional to 2,431,317 and 5,290,743

Step by Step Solution

1. Step 1: Write the proportion equation
   2,431,317 : 5,290,743 = 5,290,743 : x
2. Step 2: Convert to fraction form
   2,431,317/5,290,743 = 5,290,743/x
3. Step 3: Cross multiply
   2,431,317x = 5,290,743 × 5,290,743
4. Step 4: Simplify right side
   2,431,317x = 27,991,961,492,049
5. Step 5: Solve for x
   x = 27,991,961,492,049/2,431,317
6. Step 6: Final answer
   x = 11,513,085.91