Finding the Third Proportional to 5,198,784 and 7,798,176

Step by Step Solution

1. Step 1: Write the proportion equation
   5,198,784 : 7,798,176 = 7,798,176 : x
2. Step 2: Convert to fraction form
   5,198,784/7,798,176 = 7,798,176/x
3. Step 3: Cross multiply
   5,198,784x = 7,798,176 × 7,798,176
4. Step 4: Simplify right side
   5,198,784x = 60,811,548,926,976
5. Step 5: Solve for x
   x = 60,811,548,926,976/5,198,784
6. Step 6: Final answer
   x = 11,697,264