Finding the Third Proportional to 113,196 and 247,128

Step by Step Solution

1. Step 1: Write the proportion equation
   113,196 : 247,128 = 247,128 : x
2. Step 2: Convert to fraction form
   113,196/247,128 = 247,128/x
3. Step 3: Cross multiply
   113,196x = 247,128 × 247,128
4. Step 4: Simplify right side
   113,196x = 61,072,248,384
5. Step 5: Solve for x
   x = 61,072,248,384/113,196
6. Step 6: Final answer
   x = 539,526.56