Finding the Third Proportional to 326,060 and 501,240

Step by Step Solution

1. Step 1: Write the proportion equation
   326,060 : 501,240 = 501,240 : x
2. Step 2: Convert to fraction form
   326,060/501,240 = 501,240/x
3. Step 3: Cross multiply
   326,060x = 501,240 × 501,240
4. Step 4: Simplify right side
   326,060x = 251,241,537,600
5. Step 5: Solve for x
   x = 251,241,537,600/326,060
6. Step 6: Final answer
   x = 770,537.75