Finding the Third Proportional to 1,284,876 and 1,690,011

Step by Step Solution

1. Step 1: Write the proportion equation
   1,284,876 : 1,690,011 = 1,690,011 : x
2. Step 2: Convert to fraction form
   1,284,876/1,690,011 = 1,690,011/x
3. Step 3: Cross multiply
   1,284,876x = 1,690,011 × 1,690,011
4. Step 4: Simplify right side
   1,284,876x = 2,856,137,180,121
5. Step 5: Solve for x
   x = 2,856,137,180,121/1,284,876
6. Step 6: Final answer
   x = 2,222,889.35