Finding the Third Proportional to 113,078 and 243,328

Step by Step Solution

1. Step 1: Write the proportion equation
   113,078 : 243,328 = 243,328 : x
2. Step 2: Convert to fraction form
   113,078/243,328 = 243,328/x
3. Step 3: Cross multiply
   113,078x = 243,328 × 243,328
4. Step 4: Simplify right side
   113,078x = 59,208,515,584
5. Step 5: Solve for x
   x = 59,208,515,584/113,078
6. Step 6: Final answer
   x = 523,607.74