Finding the Third Proportional to 308,292 and 675,496.50

Step by Step Solution

1. Step 1: Write the proportion equation
   308,292 : 675,496.50 = 675,496.50 : x
2. Step 2: Convert to fraction form
   308,292/675,496.50 = 675,496.50/x
3. Step 3: Cross multiply
   308,292x = 675,496.50 × 675,496.50
4. Step 4: Simplify right side
   308,292x = 456,295,521,512.25
5. Step 5: Solve for x
   x = 456,295,521,512.25/308,292
6. Step 6: Final answer
   x = 1,480,075.78