Finding the Third Proportional to 1,211,379 and 2,623,368

Step by Step Solution

1. Step 1: Write the proportion equation
   1,211,379 : 2,623,368 = 2,623,368 : x
2. Step 2: Convert to fraction form
   1,211,379/2,623,368 = 2,623,368/x
3. Step 3: Cross multiply
   1,211,379x = 2,623,368 × 2,623,368
4. Step 4: Simplify right side
   1,211,379x = 6,882,059,663,424
5. Step 5: Solve for x
   x = 6,882,059,663,424/1,211,379
6. Step 6: Final answer
   x = 5,681,177.95