Finding the Third Proportional to 132,947 and 287,022

Step by Step Solution

1. Step 1: Write the proportion equation
   132,947 : 287,022 = 287,022 : x
2. Step 2: Convert to fraction form
   132,947/287,022 = 287,022/x
3. Step 3: Cross multiply
   132,947x = 287,022 × 287,022
4. Step 4: Simplify right side
   132,947x = 82,381,628,484
5. Step 5: Solve for x
   x = 82,381,628,484/132,947
6. Step 6: Final answer
   x = 619,657.67