Finding the Third Proportional to 31,599 and 67,959

Step by Step Solution

1. Step 1: Write the proportion equation
   31,599 : 67,959 = 67,959 : x
2. Step 2: Convert to fraction form
   31,599/67,959 = 67,959/x
3. Step 3: Cross multiply
   31,599x = 67,959 × 67,959
4. Step 4: Simplify right side
   31,599x = 4,618,425,681
5. Step 5: Solve for x
   x = 4,618,425,681/31,599
6. Step 6: Final answer
   x = 146,157.34