Finding the Third Proportional to 136,662 and 300,229.50

Step by Step Solution

1. Step 1: Write the proportion equation
   136,662 : 300,229.50 = 300,229.50 : x
2. Step 2: Convert to fraction form
   136,662/300,229.50 = 300,229.50/x
3. Step 3: Cross multiply
   136,662x = 300,229.50 × 300,229.50
4. Step 4: Simplify right side
   136,662x = 90,137,752,670.25
5. Step 5: Solve for x
   x = 90,137,752,670.25/136,662
6. Step 6: Final answer
   x = 659,567.05