Finding the Third Proportional to 136,686 and 295,836.50

Step by Step Solution

1. Step 1: Write the proportion equation
   136,686 : 295,836.50 = 295,836.50 : x
2. Step 2: Convert to fraction form
   136,686/295,836.50 = 295,836.50/x
3. Step 3: Cross multiply
   136,686x = 295,836.50 × 295,836.50
4. Step 4: Simplify right side
   136,686x = 87,519,234,732.25
5. Step 5: Solve for x
   x = 87,519,234,732.25/136,686
6. Step 6: Final answer
   x = 640,294.07