Finding the Third Proportional to 811,552.50 and 1,266,456

Step by Step Solution

1. Step 1: Write the proportion equation
   811,552.50 : 1,266,456 = 1,266,456 : x
2. Step 2: Convert to fraction form
   811,552.50/1,266,456 = 1,266,456/x
3. Step 3: Cross multiply
   811,552.50x = 1,266,456 × 1,266,456
4. Step 4: Simplify right side
   811,552.50x = 1,603,910,799,936
5. Step 5: Solve for x
   x = 1,603,910,799,936/811,552.50
6. Step 6: Final answer
   x = 1,976,348.79