Finding the Third Proportional to 113,136 and 237,648

Step by Step Solution

1. Step 1: Write the proportion equation
   113,136 : 237,648 = 237,648 : x
2. Step 2: Convert to fraction form
   113,136/237,648 = 237,648/x
3. Step 3: Cross multiply
   113,136x = 237,648 × 237,648
4. Step 4: Simplify right side
   113,136x = 56,476,571,904
5. Step 5: Solve for x
   x = 56,476,571,904/113,136
6. Step 6: Final answer
   x = 499,191.87