Finding the Third Proportional to 1,078,386 and 1,691,523

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078,386 : 1,691,523 = 1,691,523 : x
2. Step 2: Convert to fraction form
   1,078,386/1,691,523 = 1,691,523/x
3. Step 3: Cross multiply
   1,078,386x = 1,691,523 × 1,691,523
4. Step 4: Simplify right side
   1,078,386x = 2,861,250,059,529
5. Step 5: Solve for x
   x = 2,861,250,059,529/1,078,386
6. Step 6: Final answer
   x = 2,653,270.78