Finding the Third Proportional to 37,198,320 and 78,821,568

Step by Step Solution

1. Step 1: Write the proportion equation
   37,198,320 : 78,821,568 = 78,821,568 : x
2. Step 2: Convert to fraction form
   37,198,320/78,821,568 = 78,821,568/x
3. Step 3: Cross multiply
   37,198,320x = 78,821,568 × 78,821,568
4. Step 4: Simplify right side
   37,198,320x = 6,212,839,581,978,624
5. Step 5: Solve for x
   x = 6,212,839,581,978,624/37,198,320
6. Step 6: Final answer
   x = 167,019,359.53