Finding the Third Proportional to 51,819 and 111,909

Step by Step Solution

1. Step 1: Write the proportion equation
   51,819 : 111,909 = 111,909 : x
2. Step 2: Convert to fraction form
   51,819/111,909 = 111,909/x
3. Step 3: Cross multiply
   51,819x = 111,909 × 111,909
4. Step 4: Simplify right side
   51,819x = 12,523,624,281
5. Step 5: Solve for x
   x = 12,523,624,281/51,819
6. Step 6: Final answer
   x = 241,680.16