Finding the Third Proportional to 78,179 and 152,469

Step by Step Solution

1. Step 1: Write the proportion equation
   78,179 : 152,469 = 152,469 : x
2. Step 2: Convert to fraction form
   78,179/152,469 = 152,469/x
3. Step 3: Cross multiply
   78,179x = 152,469 × 152,469
4. Step 4: Simplify right side
   78,179x = 23,246,795,961
5. Step 5: Solve for x
   x = 23,246,795,961/78,179
6. Step 6: Final answer
   x = 297,353.46