Finding the Third Proportional to 132,725.25 and 287,589

Step by Step Solution

1. Step 1: Write the proportion equation
   132,725.25 : 287,589 = 287,589 : x
2. Step 2: Convert to fraction form
   132,725.25/287,589 = 287,589/x
3. Step 3: Cross multiply
   132,725.25x = 287,589 × 287,589
4. Step 4: Simplify right side
   132,725.25x = 82,707,432,921
5. Step 5: Solve for x
   x = 82,707,432,921/132,725.25
6. Step 6: Final answer
   x = 623,147.69