Finding the Third Proportional to 623,628 and 1,356,588

Step by Step Solution

1. Step 1: Write the proportion equation
   623,628 : 1,356,588 = 1,356,588 : x
2. Step 2: Convert to fraction form
   623,628/1,356,588 = 1,356,588/x
3. Step 3: Cross multiply
   623,628x = 1,356,588 × 1,356,588
4. Step 4: Simplify right side
   623,628x = 1,840,331,001,744
5. Step 5: Solve for x
   x = 1,840,331,001,744/623,628
6. Step 6: Final answer
   x = 2,951,007.65