Finding the Third Proportional to 113,328 and 264,690

Step by Step Solution

1. Step 1: Write the proportion equation
   113,328 : 264,690 = 264,690 : x
2. Step 2: Convert to fraction form
   113,328/264,690 = 264,690/x
3. Step 3: Cross multiply
   113,328x = 264,690 × 264,690
4. Step 4: Simplify right side
   113,328x = 70,060,796,100
5. Step 5: Solve for x
   x = 70,060,796,100/113,328
6. Step 6: Final answer
   x = 618,212.59