Finding the Third Proportional to 623,142 and 1,355,632

Step by Step Solution

1. Step 1: Write the proportion equation
   623,142 : 1,355,632 = 1,355,632 : x
2. Step 2: Convert to fraction form
   623,142/1,355,632 = 1,355,632/x
3. Step 3: Cross multiply
   623,142x = 1,355,632 × 1,355,632
4. Step 4: Simplify right side
   623,142x = 1,837,738,119,424
5. Step 5: Solve for x
   x = 1,837,738,119,424/623,142
6. Step 6: Final answer
   x = 2,949,148.22