Finding the Third Proportional to 190,919.25 and 377,019

Step by Step Solution

1. Step 1: Write the proportion equation
   190,919.25 : 377,019 = 377,019 : x
2. Step 2: Convert to fraction form
   190,919.25/377,019 = 377,019/x
3. Step 3: Cross multiply
   190,919.25x = 377,019 × 377,019
4. Step 4: Simplify right side
   190,919.25x = 142,143,326,361
5. Step 5: Solve for x
   x = 142,143,326,361/190,919.25
6. Step 6: Final answer
   x = 744,520.66