Finding the Third Proportional to 132,329 and 287,986

Step by Step Solution

1. Step 1: Write the proportion equation
   132,329 : 287,986 = 287,986 : x
2. Step 2: Convert to fraction form
   132,329/287,986 = 287,986/x
3. Step 3: Cross multiply
   132,329x = 287,986 × 287,986
4. Step 4: Simplify right side
   132,329x = 82,935,936,196
5. Step 5: Solve for x
   x = 82,935,936,196/132,329
6. Step 6: Final answer
   x = 626,740.44