Finding the Third Proportional to 799.50 and 2,172

Step by Step Solution

1. Step 1: Write the proportion equation
   799.50 : 2,172 = 2,172 : x
2. Step 2: Convert to fraction form
   799.50/2,172 = 2,172/x
3. Step 3: Cross multiply
   799.50x = 2,172 × 2,172
4. Step 4: Simplify right side
   799.50x = 4,717,584
5. Step 5: Solve for x
   x = 4,717,584/799.50
6. Step 6: Final answer
   x = 5,900.67