Finding the Third Proportional to 31,005 and 67,160

Step by Step Solution

1. Step 1: Write the proportion equation
   31,005 : 67,160 = 67,160 : x
2. Step 2: Convert to fraction form
   31,005/67,160 = 67,160/x
3. Step 3: Cross multiply
   31,005x = 67,160 × 67,160
4. Step 4: Simplify right side
   31,005x = 4,510,465,600
5. Step 5: Solve for x
   x = 4,510,465,600/31,005
6. Step 6: Final answer
   x = 145,475.43