Finding the Third Proportional to 132,984 and 287,104

Step by Step Solution

1. Step 1: Write the proportion equation
   132,984 : 287,104 = 287,104 : x
2. Step 2: Convert to fraction form
   132,984/287,104 = 287,104/x
3. Step 3: Cross multiply
   132,984x = 287,104 × 287,104
4. Step 4: Simplify right side
   132,984x = 82,428,706,816
5. Step 5: Solve for x
   x = 82,428,706,816/132,984
6. Step 6: Final answer
   x = 619,839.28