Finding the Third Proportional to 131,288 and 288,104

Step by Step Solution

1. Step 1: Write the proportion equation
   131,288 : 288,104 = 288,104 : x
2. Step 2: Convert to fraction form
   131,288/288,104 = 288,104/x
3. Step 3: Cross multiply
   131,288x = 288,104 × 288,104
4. Step 4: Simplify right side
   131,288x = 83,003,914,816
5. Step 5: Solve for x
   x = 83,003,914,816/131,288
6. Step 6: Final answer
   x = 632,227.73