Finding the Third Proportional to 118,488 and 188,436

Step by Step Solution

1. Step 1: Write the proportion equation
   118,488 : 188,436 = 188,436 : x
2. Step 2: Convert to fraction form
   118,488/188,436 = 188,436/x
3. Step 3: Cross multiply
   118,488x = 188,436 × 188,436
4. Step 4: Simplify right side
   118,488x = 35,508,126,096
5. Step 5: Solve for x
   x = 35,508,126,096/118,488
6. Step 6: Final answer
   x = 299,676.98