Finding the Third Proportional to 78,476 and 170,048

Step by Step Solution

1. Step 1: Write the proportion equation
   78,476 : 170,048 = 170,048 : x
2. Step 2: Convert to fraction form
   78,476/170,048 = 170,048/x
3. Step 3: Cross multiply
   78,476x = 170,048 × 170,048
4. Step 4: Simplify right side
   78,476x = 28,916,322,304
5. Step 5: Solve for x
   x = 28,916,322,304/78,476
6. Step 6: Final answer
   x = 368,473.45