Finding the Third Proportional to 40,290 and 53,847

Step by Step Solution

1. Step 1: Write the proportion equation
   40,290 : 53,847 = 53,847 : x
2. Step 2: Convert to fraction form
   40,290/53,847 = 53,847/x
3. Step 3: Cross multiply
   40,290x = 53,847 × 53,847
4. Step 4: Simplify right side
   40,290x = 2,899,499,409
5. Step 5: Solve for x
   x = 2,899,499,409/40,290
6. Step 6: Final answer
   x = 71,965.73