Finding the Third Proportional to 276,087 and 591,510

Step by Step Solution

1. Step 1: Write the proportion equation
   276,087 : 591,510 = 591,510 : x
2. Step 2: Convert to fraction form
   276,087/591,510 = 591,510/x
3. Step 3: Cross multiply
   276,087x = 591,510 × 591,510
4. Step 4: Simplify right side
   276,087x = 349,884,080,100
5. Step 5: Solve for x
   x = 349,884,080,100/276,087
6. Step 6: Final answer
   x = 1,267,296.47