Finding the Third Proportional to 158,244 and 248,760

Step by Step Solution

1. Step 1: Write the proportion equation
   158,244 : 248,760 = 248,760 : x
2. Step 2: Convert to fraction form
   158,244/248,760 = 248,760/x
3. Step 3: Cross multiply
   158,244x = 248,760 × 248,760
4. Step 4: Simplify right side
   158,244x = 61,881,537,600
5. Step 5: Solve for x
   x = 61,881,537,600/158,244
6. Step 6: Final answer
   x = 391,051.40