Finding the Third Proportional to 5,354,820 and 8,157,744

Step by Step Solution

1. Step 1: Write the proportion equation
   5,354,820 : 8,157,744 = 8,157,744 : x
2. Step 2: Convert to fraction form
   5,354,820/8,157,744 = 8,157,744/x
3. Step 3: Cross multiply
   5,354,820x = 8,157,744 × 8,157,744
4. Step 4: Simplify right side
   5,354,820x = 66,548,787,169,536
5. Step 5: Solve for x
   x = 66,548,787,169,536/5,354,820
6. Step 6: Final answer
   x = 12,427,828.98