Finding the Third Proportional to 326,300 and 722,476

Step by Step Solution

1. Step 1: Write the proportion equation
   326,300 : 722,476 = 722,476 : x
2. Step 2: Convert to fraction form
   326,300/722,476 = 722,476/x
3. Step 3: Cross multiply
   326,300x = 722,476 × 722,476
4. Step 4: Simplify right side
   326,300x = 521,971,570,576
5. Step 5: Solve for x
   x = 521,971,570,576/326,300
6. Step 6: Final answer
   x = 1,599,667.70