Finding the Third Proportional to 550,404.75 and 775,091

Step by Step Solution

1. Step 1: Write the proportion equation
   550,404.75 : 775,091 = 775,091 : x
2. Step 2: Convert to fraction form
   550,404.75/775,091 = 775,091/x
3. Step 3: Cross multiply
   550,404.75x = 775,091 × 775,091
4. Step 4: Simplify right side
   550,404.75x = 600,766,058,281
5. Step 5: Solve for x
   x = 600,766,058,281/550,404.75
6. Step 6: Final answer
   x = 1,091,498.68