Finding the Third Proportional to 1,245,210 and 1,826,499

Step by Step Solution

1. Step 1: Write the proportion equation
   1,245,210 : 1,826,499 = 1,826,499 : x
2. Step 2: Convert to fraction form
   1,245,210/1,826,499 = 1,826,499/x
3. Step 3: Cross multiply
   1,245,210x = 1,826,499 × 1,826,499
4. Step 4: Simplify right side
   1,245,210x = 3,336,098,597,001
5. Step 5: Solve for x
   x = 3,336,098,597,001/1,245,210
6. Step 6: Final answer
   x = 2,679,145.36