Finding the Third Proportional to 2,421,530 and 5,315,382

Step by Step Solution

1. Step 1: Write the proportion equation
   2,421,530 : 5,315,382 = 5,315,382 : x
2. Step 2: Convert to fraction form
   2,421,530/5,315,382 = 5,315,382/x
3. Step 3: Cross multiply
   2,421,530x = 5,315,382 × 5,315,382
4. Step 4: Simplify right side
   2,421,530x = 28,253,285,805,924
5. Step 5: Solve for x
   x = 28,253,285,805,924/2,421,530
6. Step 6: Final answer
   x = 11,667,534.91