Finding the Third Proportional to 1,078,390 and 1,691,529

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078,390 : 1,691,529 = 1,691,529 : x
2. Step 2: Convert to fraction form
   1,078,390/1,691,529 = 1,691,529/x
3. Step 3: Cross multiply
   1,078,390x = 1,691,529 × 1,691,529
4. Step 4: Simplify right side
   1,078,390x = 2,861,270,357,841
5. Step 5: Solve for x
   x = 2,861,270,357,841/1,078,390
6. Step 6: Final answer
   x = 2,653,279.76