Finding the Third Proportional to 31,550 and 67,960

Step by Step Solution

1. Step 1: Write the proportion equation
   31,550 : 67,960 = 67,960 : x
2. Step 2: Convert to fraction form
   31,550/67,960 = 67,960/x
3. Step 3: Cross multiply
   31,550x = 67,960 × 67,960
4. Step 4: Simplify right side
   31,550x = 4,618,561,600
5. Step 5: Solve for x
   x = 4,618,561,600/31,550
6. Step 6: Final answer
   x = 146,388.64