Finding the Third Proportional to 550,413 and 823,060.50

Step by Step Solution

1. Step 1: Write the proportion equation
   550,413 : 823,060.50 = 823,060.50 : x
2. Step 2: Convert to fraction form
   550,413/823,060.50 = 823,060.50/x
3. Step 3: Cross multiply
   550,413x = 823,060.50 × 823,060.50
4. Step 4: Simplify right side
   550,413x = 677,428,586,660.25
5. Step 5: Solve for x
   x = 677,428,586,660.25/550,413
6. Step 6: Final answer
   x = 1,230,764.15