Finding the Third Proportional to 355,666 and 632,386

Step by Step Solution

1. Step 1: Write the proportion equation
   355,666 : 632,386 = 632,386 : x
2. Step 2: Convert to fraction form
   355,666/632,386 = 632,386/x
3. Step 3: Cross multiply
   355,666x = 632,386 × 632,386
4. Step 4: Simplify right side
   355,666x = 399,912,052,996
5. Step 5: Solve for x
   x = 399,912,052,996/355,666
6. Step 6: Final answer
   x = 1,124,403.38