Finding the Third Proportional to 191,855.25 and 287,782.88

Step by Step Solution

1. Step 1: Write the proportion equation
   191,855.25 : 287,782.88 = 287,782.88 : x
2. Step 2: Convert to fraction form
   191,855.25/287,782.88 = 287,782.88/x
3. Step 3: Cross multiply
   191,855.25x = 287,782.88 × 287,782.88
4. Step 4: Simplify right side
   191,855.25x = 82,818,983,143.27
5. Step 5: Solve for x
   x = 82,818,983,143.27/191,855.25
6. Step 6: Final answer
   x = 431,674.31