Finding the Third Proportional to 113,929 and 245,389

Step by Step Solution

1. Step 1: Write the proportion equation
   113,929 : 245,389 = 245,389 : x
2. Step 2: Convert to fraction form
   113,929/245,389 = 245,389/x
3. Step 3: Cross multiply
   113,929x = 245,389 × 245,389
4. Step 4: Simplify right side
   113,929x = 60,215,761,321
5. Step 5: Solve for x
   x = 60,215,761,321/113,929
6. Step 6: Final answer
   x = 528,537.61