Finding the Third Proportional to 263,463 and 554,458.50

Step by Step Solution

1. Step 1: Write the proportion equation
   263,463 : 554,458.50 = 554,458.50 : x
2. Step 2: Convert to fraction form
   263,463/554,458.50 = 554,458.50/x
3. Step 3: Cross multiply
   263,463x = 554,458.50 × 554,458.50
4. Step 4: Simplify right side
   263,463x = 307,424,228,222.25
5. Step 5: Solve for x
   x = 307,424,228,222.25/263,463
6. Step 6: Final answer
   x = 1,166,859.21