Finding the Third Proportional to 851.81 and 1,885.69

Step by Step Solution

1. Step 1: Write the proportion equation
   851.81 : 1,885.69 = 1,885.69 : x
2. Step 2: Convert to fraction form
   851.81/1,885.69 = 1,885.69/x
3. Step 3: Cross multiply
   851.81x = 1,885.69 × 1,885.69
4. Step 4: Simplify right side
   851.81x = 3,555,817.35
5. Step 5: Solve for x
   x = 3,555,817.35/851.81
6. Step 6: Final answer
   x = 4,174.41