Finding the Third Proportional to 30,983 and 67,906

Step by Step Solution

1. Step 1: Write the proportion equation
   30,983 : 67,906 = 67,906 : x
2. Step 2: Convert to fraction form
   30,983/67,906 = 67,906/x
3. Step 3: Cross multiply
   30,983x = 67,906 × 67,906
4. Step 4: Simplify right side
   30,983x = 4,611,224,836
5. Step 5: Solve for x
   x = 4,611,224,836/30,983
6. Step 6: Final answer
   x = 148,830.81