Finding the Third Proportional to 132,840 and 199,404

Step by Step Solution

1. Step 1: Write the proportion equation
   132,840 : 199,404 = 199,404 : x
2. Step 2: Convert to fraction form
   132,840/199,404 = 199,404/x
3. Step 3: Cross multiply
   132,840x = 199,404 × 199,404
4. Step 4: Simplify right side
   132,840x = 39,761,955,216
5. Step 5: Solve for x
   x = 39,761,955,216/132,840
6. Step 6: Final answer
   x = 299,322.16