Finding the Third Proportional to 67,120 and 156,760

Step by Step Solution

1. Step 1: Write the proportion equation
   67,120 : 156,760 = 156,760 : x
2. Step 2: Convert to fraction form
   67,120/156,760 = 156,760/x
3. Step 3: Cross multiply
   67,120x = 156,760 × 156,760
4. Step 4: Simplify right side
   67,120x = 24,573,697,600
5. Step 5: Solve for x
   x = 24,573,697,600/67,120
6. Step 6: Final answer
   x = 366,115.88