Finding the Third Proportional to 271,307.81 and 579,987

Step by Step Solution

1. Step 1: Write the proportion equation
   271,307.81 : 579,987 = 579,987 : x
2. Step 2: Convert to fraction form
   271,307.81/579,987 = 579,987/x
3. Step 3: Cross multiply
   271,307.81x = 579,987 × 579,987
4. Step 4: Simplify right side
   271,307.81x = 336,384,920,169
5. Step 5: Solve for x
   x = 336,384,920,169/271,307.81
6. Step 6: Final answer
   x = 1,239,864.48