Finding the Third Proportional to 155,538 and 338,730

Step by Step Solution

1. Step 1: Write the proportion equation
   155,538 : 338,730 = 338,730 : x
2. Step 2: Convert to fraction form
   155,538/338,730 = 338,730/x
3. Step 3: Cross multiply
   155,538x = 338,730 × 338,730
4. Step 4: Simplify right side
   155,538x = 114,738,012,900
5. Step 5: Solve for x
   x = 114,738,012,900/155,538
6. Step 6: Final answer
   x = 737,684.76