Finding the Third Proportional to 623,365 and 1,345,142

Step by Step Solution

1. Step 1: Write the proportion equation
   623,365 : 1,345,142 = 1,345,142 : x
2. Step 2: Convert to fraction form
   623,365/1,345,142 = 1,345,142/x
3. Step 3: Cross multiply
   623,365x = 1,345,142 × 1,345,142
4. Step 4: Simplify right side
   623,365x = 1,809,407,000,164
5. Step 5: Solve for x
   x = 1,809,407,000,164/623,365
6. Step 6: Final answer
   x = 2,902,644.52