Finding the Third Proportional to 155,676 and 245,986

Step by Step Solution

1. Step 1: Write the proportion equation
   155,676 : 245,986 = 245,986 : x
2. Step 2: Convert to fraction form
   155,676/245,986 = 245,986/x
3. Step 3: Cross multiply
   155,676x = 245,986 × 245,986
4. Step 4: Simplify right side
   155,676x = 60,509,112,196
5. Step 5: Solve for x
   x = 60,509,112,196/155,676
6. Step 6: Final answer
   x = 388,686.20