Finding the Third Proportional to 1,077,839 and 1,690,812

Step by Step Solution

1. Step 1: Write the proportion equation
   1,077,839 : 1,690,812 = 1,690,812 : x
2. Step 2: Convert to fraction form
   1,077,839/1,690,812 = 1,690,812/x
3. Step 3: Cross multiply
   1,077,839x = 1,690,812 × 1,690,812
4. Step 4: Simplify right side
   1,077,839x = 2,858,845,219,344
5. Step 5: Solve for x
   x = 2,858,845,219,344/1,077,839
6. Step 6: Final answer
   x = 2,652,386.13