Finding the Third Proportional to 131,404 and 289,050

Step by Step Solution

1. Step 1: Write the proportion equation
   131,404 : 289,050 = 289,050 : x
2. Step 2: Convert to fraction form
   131,404/289,050 = 289,050/x
3. Step 3: Cross multiply
   131,404x = 289,050 × 289,050
4. Step 4: Simplify right side
   131,404x = 83,549,902,500
5. Step 5: Solve for x
   x = 83,549,902,500/131,404
6. Step 6: Final answer
   x = 635,824.65