Finding the Third Proportional to 80,403 and 127,429

Step by Step Solution

1. Step 1: Write the proportion equation
   80,403 : 127,429 = 127,429 : x
2. Step 2: Convert to fraction form
   80,403/127,429 = 127,429/x
3. Step 3: Cross multiply
   80,403x = 127,429 × 127,429
4. Step 4: Simplify right side
   80,403x = 16,238,150,041
5. Step 5: Solve for x
   x = 16,238,150,041/80,403
6. Step 6: Final answer
   x = 201,959.50