Finding the Third Proportional to 155,866 and 338,300

Step by Step Solution

1. Step 1: Write the proportion equation
   155,866 : 338,300 = 338,300 : x
2. Step 2: Convert to fraction form
   155,866/338,300 = 338,300/x
3. Step 3: Cross multiply
   155,866x = 338,300 × 338,300
4. Step 4: Simplify right side
   155,866x = 114,446,890,000
5. Step 5: Solve for x
   x = 114,446,890,000/155,866
6. Step 6: Final answer
   x = 734,264.62