Finding the Third Proportional to 155,072 and 245,954

Step by Step Solution

1. Step 1: Write the proportion equation
   155,072 : 245,954 = 245,954 : x
2. Step 2: Convert to fraction form
   155,072/245,954 = 245,954/x
3. Step 3: Cross multiply
   155,072x = 245,954 × 245,954
4. Step 4: Simplify right side
   155,072x = 60,493,370,116
5. Step 5: Solve for x
   x = 60,493,370,116/155,072
6. Step 6: Final answer
   x = 390,098.60