Finding the Third Proportional to 278,067.94 and 377,735.91

Step by Step Solution

1. Step 1: Write the proportion equation
   278,067.94 : 377,735.91 = 377,735.91 : x
2. Step 2: Convert to fraction form
   278,067.94/377,735.91 = 377,735.91/x
3. Step 3: Cross multiply
   278,067.94x = 377,735.91 × 377,735.91
4. Step 4: Simplify right side
   278,067.94x = 142,684,414,870.51
5. Step 5: Solve for x
   x = 142,684,414,870.51/278,067.94
6. Step 6: Final answer
   x = 513,127.89