Finding the Third Proportional to 57,742.50 and 120,021

Step by Step Solution

1. Step 1: Write the proportion equation
   57,742.50 : 120,021 = 120,021 : x
2. Step 2: Convert to fraction form
   57,742.50/120,021 = 120,021/x
3. Step 3: Cross multiply
   57,742.50x = 120,021 × 120,021
4. Step 4: Simplify right side
   57,742.50x = 14,405,040,441
5. Step 5: Solve for x
   x = 14,405,040,441/57,742.50
6. Step 6: Final answer
   x = 249,470.33