Finding the Third Proportional to 116,688 and 238,303

Step by Step Solution

1. Step 1: Write the proportion equation
   116,688 : 238,303 = 238,303 : x
2. Step 2: Convert to fraction form
   116,688/238,303 = 238,303/x
3. Step 3: Cross multiply
   116,688x = 238,303 × 238,303
4. Step 4: Simplify right side
   116,688x = 56,788,319,809
5. Step 5: Solve for x
   x = 56,788,319,809/116,688
6. Step 6: Final answer
   x = 486,668.04