Finding the Third Proportional to 40,840 and 61,216

Step by Step Solution

1. Step 1: Write the proportion equation
   40,840 : 61,216 = 61,216 : x
2. Step 2: Convert to fraction form
   40,840/61,216 = 61,216/x
3. Step 3: Cross multiply
   40,840x = 61,216 × 61,216
4. Step 4: Simplify right side
   40,840x = 3,747,398,656
5. Step 5: Solve for x
   x = 3,747,398,656/40,840
6. Step 6: Final answer
   x = 91,758.05