Finding the Third Proportional to 131,756 and 288,116

Step by Step Solution

1. Step 1: Write the proportion equation
   131,756 : 288,116 = 288,116 : x
2. Step 2: Convert to fraction form
   131,756/288,116 = 288,116/x
3. Step 3: Cross multiply
   131,756x = 288,116 × 288,116
4. Step 4: Simplify right side
   131,756x = 83,010,829,456
5. Step 5: Solve for x
   x = 83,010,829,456/131,756
6. Step 6: Final answer
   x = 630,034.53