Finding the Third Proportional to 5,178,797 and 7,840,164

Step by Step Solution

1. Step 1: Write the proportion equation
   5,178,797 : 7,840,164 = 7,840,164 : x
2. Step 2: Convert to fraction form
   5,178,797/7,840,164 = 7,840,164/x
3. Step 3: Cross multiply
   5,178,797x = 7,840,164 × 7,840,164
4. Step 4: Simplify right side
   5,178,797x = 61,468,171,546,896
5. Step 5: Solve for x
   x = 61,468,171,546,896/5,178,797
6. Step 6: Final answer
   x = 11,869,198.88