Finding the Third Proportional to 141,683.50 and 215,908

Step by Step Solution

1. Step 1: Write the proportion equation
   141,683.50 : 215,908 = 215,908 : x
2. Step 2: Convert to fraction form
   141,683.50/215,908 = 215,908/x
3. Step 3: Cross multiply
   141,683.50x = 215,908 × 215,908
4. Step 4: Simplify right side
   141,683.50x = 46,616,264,464
5. Step 5: Solve for x
   x = 46,616,264,464/141,683.50
6. Step 6: Final answer
   x = 329,016.89