Finding the Third Proportional to 326,360 and 504,300

Step by Step Solution

1. Step 1: Write the proportion equation
   326,360 : 504,300 = 504,300 : x
2. Step 2: Convert to fraction form
   326,360/504,300 = 504,300/x
3. Step 3: Cross multiply
   326,360x = 504,300 × 504,300
4. Step 4: Simplify right side
   326,360x = 254,318,490,000
5. Step 5: Solve for x
   x = 254,318,490,000/326,360
6. Step 6: Final answer
   x = 779,257.54