Finding the Third Proportional to 355,668 and 632,389.50

Step by Step Solution

1. Step 1: Write the proportion equation
   355,668 : 632,389.50 = 632,389.50 : x
2. Step 2: Convert to fraction form
   355,668/632,389.50 = 632,389.50/x
3. Step 3: Cross multiply
   355,668x = 632,389.50 × 632,389.50
4. Step 4: Simplify right side
   355,668x = 399,916,479,710.25
5. Step 5: Solve for x
   x = 399,916,479,710.25/355,668
6. Step 6: Final answer
   x = 1,124,409.50