Finding the Third Proportional to 230,136 and 492,258

Step by Step Solution

1. Step 1: Write the proportion equation
   230,136 : 492,258 = 492,258 : x
2. Step 2: Convert to fraction form
   230,136/492,258 = 492,258/x
3. Step 3: Cross multiply
   230,136x = 492,258 × 492,258
4. Step 4: Simplify right side
   230,136x = 242,317,938,564
5. Step 5: Solve for x
   x = 242,317,938,564/230,136
6. Step 6: Final answer
   x = 1,052,933.65