Finding the Third Proportional to 86,787 and 175,986

Step by Step Solution

1. Step 1: Write the proportion equation
   86,787 : 175,986 = 175,986 : x
2. Step 2: Convert to fraction form
   86,787/175,986 = 175,986/x
3. Step 3: Cross multiply
   86,787x = 175,986 × 175,986
4. Step 4: Simplify right side
   86,787x = 30,971,072,196
5. Step 5: Solve for x
   x = 30,971,072,196/86,787
6. Step 6: Final answer
   x = 356,863.03