Finding the Third Proportional to 116,370 and 237,636

Step by Step Solution

1. Step 1: Write the proportion equation
   116,370 : 237,636 = 237,636 : x
2. Step 2: Convert to fraction form
   116,370/237,636 = 237,636/x
3. Step 3: Cross multiply
   116,370x = 237,636 × 237,636
4. Step 4: Simplify right side
   116,370x = 56,470,868,496
5. Step 5: Solve for x
   x = 56,470,868,496/116,370
6. Step 6: Final answer
   x = 485,269.99