Finding the Third Proportional to 263,614 and 545,921.75

Step by Step Solution

1. Step 1: Write the proportion equation
   263,614 : 545,921.75 = 545,921.75 : x
2. Step 2: Convert to fraction form
   263,614/545,921.75 = 545,921.75/x
3. Step 3: Cross multiply
   263,614x = 545,921.75 × 545,921.75
4. Step 4: Simplify right side
   263,614x = 298,030,557,123.06
5. Step 5: Solve for x
   x = 298,030,557,123.06/263,614
6. Step 6: Final answer
   x = 1,130,556.64