Finding the Third Proportional to 121,414.50 and 248,841

Step by Step Solution

1. Step 1: Write the proportion equation
   121,414.50 : 248,841 = 248,841 : x
2. Step 2: Convert to fraction form
   121,414.50/248,841 = 248,841/x
3. Step 3: Cross multiply
   121,414.50x = 248,841 × 248,841
4. Step 4: Simplify right side
   121,414.50x = 61,921,843,281
5. Step 5: Solve for x
   x = 61,921,843,281/121,414.50
6. Step 6: Final answer
   x = 510,003.69