Finding the Third Proportional to 623,131 and 1,355,612

Step by Step Solution

1. Step 1: Write the proportion equation
   623,131 : 1,355,612 = 1,355,612 : x
2. Step 2: Convert to fraction form
   623,131/1,355,612 = 1,355,612/x
3. Step 3: Cross multiply
   623,131x = 1,355,612 × 1,355,612
4. Step 4: Simplify right side
   623,131x = 1,837,683,894,544
5. Step 5: Solve for x
   x = 1,837,683,894,544/623,131
6. Step 6: Final answer
   x = 2,949,113.26