Finding the Third Proportional to 131,738.50 and 289,082

Step by Step Solution

1. Step 1: Write the proportion equation
   131,738.50 : 289,082 = 289,082 : x
2. Step 2: Convert to fraction form
   131,738.50/289,082 = 289,082/x
3. Step 3: Cross multiply
   131,738.50x = 289,082 × 289,082
4. Step 4: Simplify right side
   131,738.50x = 83,568,402,724
5. Step 5: Solve for x
   x = 83,568,402,724/131,738.50
6. Step 6: Final answer
   x = 634,350.65