Finding the Third Proportional to 67,689 and 147,906

Step by Step Solution

1. Step 1: Write the proportion equation
   67,689 : 147,906 = 147,906 : x
2. Step 2: Convert to fraction form
   67,689/147,906 = 147,906/x
3. Step 3: Cross multiply
   67,689x = 147,906 × 147,906
4. Step 4: Simplify right side
   67,689x = 21,876,184,836
5. Step 5: Solve for x
   x = 21,876,184,836/67,689
6. Step 6: Final answer
   x = 323,186.70