Finding the Third Proportional to 152,960.50 and 215,018

Step by Step Solution

1. Step 1: Write the proportion equation
   152,960.50 : 215,018 = 215,018 : x
2. Step 2: Convert to fraction form
   152,960.50/215,018 = 215,018/x
3. Step 3: Cross multiply
   152,960.50x = 215,018 × 215,018
4. Step 4: Simplify right side
   152,960.50x = 46,232,740,324
5. Step 5: Solve for x
   x = 46,232,740,324/152,960.50
6. Step 6: Final answer
   x = 302,252.81