Finding the Third Proportional to 116,228 and 245,512

Step by Step Solution

1. Step 1: Write the proportion equation
   116,228 : 245,512 = 245,512 : x
2. Step 2: Convert to fraction form
   116,228/245,512 = 245,512/x
3. Step 3: Cross multiply
   116,228x = 245,512 × 245,512
4. Step 4: Simplify right side
   116,228x = 60,276,142,144
5. Step 5: Solve for x
   x = 60,276,142,144/116,228
6. Step 6: Final answer
   x = 518,602.59