Finding the Third Proportional to 140,985 and 215,942

Step by Step Solution

1. Step 1: Write the proportion equation
   140,985 : 215,942 = 215,942 : x
2. Step 2: Convert to fraction form
   140,985/215,942 = 215,942/x
3. Step 3: Cross multiply
   140,985x = 215,942 × 215,942
4. Step 4: Simplify right side
   140,985x = 46,630,947,364
5. Step 5: Solve for x
   x = 46,630,947,364/140,985
6. Step 6: Final answer
   x = 330,751.13