Finding the Third Proportional to 113,424 and 264,930

Step by Step Solution

1. Step 1: Write the proportion equation
   113,424 : 264,930 = 264,930 : x
2. Step 2: Convert to fraction form
   113,424/264,930 = 264,930/x
3. Step 3: Cross multiply
   113,424x = 264,930 × 264,930
4. Step 4: Simplify right side
   113,424x = 70,187,904,900
5. Step 5: Solve for x
   x = 70,187,904,900/113,424
6. Step 6: Final answer
   x = 618,810.00