Finding the Third Proportional to 51,021 and 111,888

Step by Step Solution

1. Step 1: Write the proportion equation
   51,021 : 111,888 = 111,888 : x
2. Step 2: Convert to fraction form
   51,021/111,888 = 111,888/x
3. Step 3: Cross multiply
   51,021x = 111,888 × 111,888
4. Step 4: Simplify right side
   51,021x = 12,518,924,544
5. Step 5: Solve for x
   x = 12,518,924,544/51,021
6. Step 6: Final answer
   x = 245,368.07