Finding the Third Proportional to 78,018 and 168,492

Step by Step Solution

1. Step 1: Write the proportion equation
   78,018 : 168,492 = 168,492 : x
2. Step 2: Convert to fraction form
   78,018/168,492 = 168,492/x
3. Step 3: Cross multiply
   78,018x = 168,492 × 168,492
4. Step 4: Simplify right side
   78,018x = 28,389,554,064
5. Step 5: Solve for x
   x = 28,389,554,064/78,018
6. Step 6: Final answer
   x = 363,884.67