Finding the Third Proportional to 5,542,398 and 12,949,540

Step by Step Solution

1. Step 1: Write the proportion equation
   5,542,398 : 12,949,540 = 12,949,540 : x
2. Step 2: Convert to fraction form
   5,542,398/12,949,540 = 12,949,540/x
3. Step 3: Cross multiply
   5,542,398x = 12,949,540 × 12,949,540
4. Step 4: Simplify right side
   5,542,398x = 167,690,586,211,600
5. Step 5: Solve for x
   x = 167,690,586,211,600/5,542,398
6. Step 6: Final answer
   x = 30,255,962.53