Finding the Third Proportional to 538,597.50 and 819,087

Step by Step Solution

1. Step 1: Write the proportion equation
   538,597.50 : 819,087 = 819,087 : x
2. Step 2: Convert to fraction form
   538,597.50/819,087 = 819,087/x
3. Step 3: Cross multiply
   538,597.50x = 819,087 × 819,087
4. Step 4: Simplify right side
   538,597.50x = 670,903,513,569
5. Step 5: Solve for x
   x = 670,903,513,569/538,597.50
6. Step 6: Final answer
   x = 1,245,649.14