Finding the Third Proportional to 122,987 and 188,049

Step by Step Solution

1. Step 1: Write the proportion equation
   122,987 : 188,049 = 188,049 : x
2. Step 2: Convert to fraction form
   122,987/188,049 = 188,049/x
3. Step 3: Cross multiply
   122,987x = 188,049 × 188,049
4. Step 4: Simplify right side
   122,987x = 35,362,426,401
5. Step 5: Solve for x
   x = 35,362,426,401/122,987
6. Step 6: Final answer
   x = 287,529.79