Finding the Third Proportional to 810,508 and 1,876,339

Step by Step Solution

1. Step 1: Write the proportion equation
   810,508 : 1,876,339 = 1,876,339 : x
2. Step 2: Convert to fraction form
   810,508/1,876,339 = 1,876,339/x
3. Step 3: Cross multiply
   810,508x = 1,876,339 × 1,876,339
4. Step 4: Simplify right side
   810,508x = 3,520,648,042,921
5. Step 5: Solve for x
   x = 3,520,648,042,921/810,508
6. Step 6: Final answer
   x = 4,343,754.83