Finding the Third Proportional to 546,363 and 819,544.50

Step by Step Solution

1. Step 1: Write the proportion equation
   546,363 : 819,544.50 = 819,544.50 : x
2. Step 2: Convert to fraction form
   546,363/819,544.50 = 819,544.50/x
3. Step 3: Cross multiply
   546,363x = 819,544.50 × 819,544.50
4. Step 4: Simplify right side
   546,363x = 671,653,187,480.25
5. Step 5: Solve for x
   x = 671,653,187,480.25/546,363
6. Step 6: Final answer
   x = 1,229,316.75