Finding the Third Proportional to 623,318 and 1,345,048

Step by Step Solution

1. Step 1: Write the proportion equation
   623,318 : 1,345,048 = 1,345,048 : x
2. Step 2: Convert to fraction form
   623,318/1,345,048 = 1,345,048/x
3. Step 3: Cross multiply
   623,318x = 1,345,048 × 1,345,048
4. Step 4: Simplify right side
   623,318x = 1,809,154,122,304
5. Step 5: Solve for x
   x = 1,809,154,122,304/623,318
6. Step 6: Final answer
   x = 2,902,457.69