Finding the Third Proportional to 155,870 and 338,308

Step by Step Solution

1. Step 1: Write the proportion equation
   155,870 : 338,308 = 338,308 : x
2. Step 2: Convert to fraction form
   155,870/338,308 = 338,308/x
3. Step 3: Cross multiply
   155,870x = 338,308 × 338,308
4. Step 4: Simplify right side
   155,870x = 114,452,302,864
5. Step 5: Solve for x
   x = 114,452,302,864/155,870
6. Step 6: Final answer
   x = 734,280.51