Finding the Third Proportional to 2,431,422 and 5,290,947

Step by Step Solution

1. Step 1: Write the proportion equation
   2,431,422 : 5,290,947 = 5,290,947 : x
2. Step 2: Convert to fraction form
   2,431,422/5,290,947 = 5,290,947/x
3. Step 3: Cross multiply
   2,431,422x = 5,290,947 × 5,290,947
4. Step 4: Simplify right side
   2,431,422x = 27,994,120,156,809
5. Step 5: Solve for x
   x = 27,994,120,156,809/2,431,422
6. Step 6: Final answer
   x = 11,513,476.54