Finding the Third Proportional to 188,168 and 288,248

Step by Step Solution

1. Step 1: Write the proportion equation
   188,168 : 288,248 = 288,248 : x
2. Step 2: Convert to fraction form
   188,168/288,248 = 288,248/x
3. Step 3: Cross multiply
   188,168x = 288,248 × 288,248
4. Step 4: Simplify right side
   188,168x = 83,086,909,504
5. Step 5: Solve for x
   x = 83,086,909,504/188,168
6. Step 6: Final answer
   x = 441,557.06