Finding the Third Proportional to 99,583.50 and 215,016

Step by Step Solution

1. Step 1: Write the proportion equation
   99,583.50 : 215,016 = 215,016 : x
2. Step 2: Convert to fraction form
   99,583.50/215,016 = 215,016/x
3. Step 3: Cross multiply
   99,583.50x = 215,016 × 215,016
4. Step 4: Simplify right side
   99,583.50x = 46,231,880,256
5. Step 5: Solve for x
   x = 46,231,880,256/99,583.50
6. Step 6: Final answer
   x = 464,252.41