Finding the Third Proportional to 71,360 and 168,760

Step by Step Solution

1. Step 1: Write the proportion equation
   71,360 : 168,760 = 168,760 : x
2. Step 2: Convert to fraction form
   71,360/168,760 = 168,760/x
3. Step 3: Cross multiply
   71,360x = 168,760 × 168,760
4. Step 4: Simplify right side
   71,360x = 28,479,937,600
5. Step 5: Solve for x
   x = 28,479,937,600/71,360
6. Step 6: Final answer
   x = 399,102.26