Finding the Third Proportional to 136,298 and 206,906

Step by Step Solution

1. Step 1: Write the proportion equation
   136,298 : 206,906 = 206,906 : x
2. Step 2: Convert to fraction form
   136,298/206,906 = 206,906/x
3. Step 3: Cross multiply
   136,298x = 206,906 × 206,906
4. Step 4: Simplify right side
   136,298x = 42,810,092,836
5. Step 5: Solve for x
   x = 42,810,092,836/136,298
6. Step 6: Final answer
   x = 314,091.86