Finding the Third Proportional to 417,215.25 and 856,548

Step by Step Solution

1. Step 1: Write the proportion equation
   417,215.25 : 856,548 = 856,548 : x
2. Step 2: Convert to fraction form
   417,215.25/856,548 = 856,548/x
3. Step 3: Cross multiply
   417,215.25x = 856,548 × 856,548
4. Step 4: Simplify right side
   417,215.25x = 733,674,476,304
5. Step 5: Solve for x
   x = 733,674,476,304/417,215.25
6. Step 6: Final answer
   x = 1,758,503.50