Finding the Third Proportional to 355,524 and 777,561.75

Step by Step Solution

1. Step 1: Write the proportion equation
   355,524 : 777,561.75 = 777,561.75 : x
2. Step 2: Convert to fraction form
   355,524/777,561.75 = 777,561.75/x
3. Step 3: Cross multiply
   355,524x = 777,561.75 × 777,561.75
4. Step 4: Simplify right side
   355,524x = 604,602,275,063.06
5. Step 5: Solve for x
   x = 604,602,275,063.06/355,524
6. Step 6: Final answer
   x = 1,700,594.83