Finding the Third Proportional to 1,078,558 and 1,691,891

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078,558 : 1,691,891 = 1,691,891 : x
2. Step 2: Convert to fraction form
   1,078,558/1,691,891 = 1,691,891/x
3. Step 3: Cross multiply
   1,078,558x = 1,691,891 × 1,691,891
4. Step 4: Simplify right side
   1,078,558x = 2,862,495,155,881
5. Step 5: Solve for x
   x = 2,862,495,155,881/1,078,558
6. Step 6: Final answer
   x = 2,654,002.06