Finding the Third Proportional to 1,119,401 and 1,688,469

Step by Step Solution

1. Step 1: Write the proportion equation
   1,119,401 : 1,688,469 = 1,688,469 : x
2. Step 2: Convert to fraction form
   1,119,401/1,688,469 = 1,688,469/x
3. Step 3: Cross multiply
   1,119,401x = 1,688,469 × 1,688,469
4. Step 4: Simplify right side
   1,119,401x = 2,850,927,563,961
5. Step 5: Solve for x
   x = 2,850,927,563,961/1,119,401
6. Step 6: Final answer
   x = 2,546,833.14