Finding the Third Proportional to 114,986 and 243,886

Step by Step Solution

1. Step 1: Write the proportion equation
   114,986 : 243,886 = 243,886 : x
2. Step 2: Convert to fraction form
   114,986/243,886 = 243,886/x
3. Step 3: Cross multiply
   114,986x = 243,886 × 243,886
4. Step 4: Simplify right side
   114,986x = 59,480,380,996
5. Step 5: Solve for x
   x = 59,480,380,996/114,986
6. Step 6: Final answer
   x = 517,283.68