Finding the Third Proportional to 113,365 and 247,142

Step by Step Solution

1. Step 1: Write the proportion equation
   113,365 : 247,142 = 247,142 : x
2. Step 2: Convert to fraction form
   113,365/247,142 = 247,142/x
3. Step 3: Cross multiply
   113,365x = 247,142 × 247,142
4. Step 4: Simplify right side
   113,365x = 61,079,168,164
5. Step 5: Solve for x
   x = 61,079,168,164/113,365
6. Step 6: Final answer
   x = 538,783.29