Finding the Third Proportional to 623,144 and 1,355,634

Step by Step Solution

1. Step 1: Write the proportion equation
   623,144 : 1,355,634 = 1,355,634 : x
2. Step 2: Convert to fraction form
   623,144/1,355,634 = 1,355,634/x
3. Step 3: Cross multiply
   623,144x = 1,355,634 × 1,355,634
4. Step 4: Simplify right side
   623,144x = 1,837,743,541,956
5. Step 5: Solve for x
   x = 1,837,743,541,956/623,144
6. Step 6: Final answer
   x = 2,949,147.46