Finding the Third Proportional to 132,757.50 and 286,647

Step by Step Solution

1. Step 1: Write the proportion equation
   132,757.50 : 286,647 = 286,647 : x
2. Step 2: Convert to fraction form
   132,757.50/286,647 = 286,647/x
3. Step 3: Cross multiply
   132,757.50x = 286,647 × 286,647
4. Step 4: Simplify right side
   132,757.50x = 82,166,502,609
5. Step 5: Solve for x
   x = 82,166,502,609/132,757.50
6. Step 6: Final answer
   x = 618,921.74