Finding the Third Proportional to 132,826.50 and 286,644

Step by Step Solution

1. Step 1: Write the proportion equation
   132,826.50 : 286,644 = 286,644 : x
2. Step 2: Convert to fraction form
   132,826.50/286,644 = 286,644/x
3. Step 3: Cross multiply
   132,826.50x = 286,644 × 286,644
4. Step 4: Simplify right side
   132,826.50x = 82,164,782,736
5. Step 5: Solve for x
   x = 82,164,782,736/132,826.50
6. Step 6: Final answer
   x = 618,587.28