Finding the Third Proportional to 86,367 and 187,488

Step by Step Solution

1. Step 1: Write the proportion equation
   86,367 : 187,488 = 187,488 : x
2. Step 2: Convert to fraction form
   86,367/187,488 = 187,488/x
3. Step 3: Cross multiply
   86,367x = 187,488 × 187,488
4. Step 4: Simplify right side
   86,367x = 35,151,750,144
5. Step 5: Solve for x
   x = 35,151,750,144/86,367
6. Step 6: Final answer
   x = 407,004.41