Finding the Third Proportional to 116,209 and 245,474

Step by Step Solution

1. Step 1: Write the proportion equation
   116,209 : 245,474 = 245,474 : x
2. Step 2: Convert to fraction form
   116,209/245,474 = 245,474/x
3. Step 3: Cross multiply
   116,209x = 245,474 × 245,474
4. Step 4: Simplify right side
   116,209x = 60,257,484,676
5. Step 5: Solve for x
   x = 60,257,484,676/116,209
6. Step 6: Final answer
   x = 518,526.83