Finding the Third Proportional to 550,404.56 and 775,090.69

Step by Step Solution

1. Step 1: Write the proportion equation
   550,404.56 : 775,090.69 = 775,090.69 : x
2. Step 2: Convert to fraction form
   550,404.56/775,090.69 = 775,090.69/x
3. Step 3: Cross multiply
   550,404.56x = 775,090.69 × 775,090.69
4. Step 4: Simplify right side
   550,404.56x = 600,765,573,849.22
5. Step 5: Solve for x
   x = 600,765,573,849.22/550,404.56
6. Step 6: Final answer
   x = 1,091,498.17