Finding the Third Proportional to 623,112 and 1,355,574

Step by Step Solution

1. Step 1: Write the proportion equation
   623,112 : 1,355,574 = 1,355,574 : x
2. Step 2: Convert to fraction form
   623,112/1,355,574 = 1,355,574/x
3. Step 3: Cross multiply
   623,112x = 1,355,574 × 1,355,574
4. Step 4: Simplify right side
   623,112x = 1,837,580,869,476
5. Step 5: Solve for x
   x = 1,837,580,869,476/623,112
6. Step 6: Final answer
   x = 2,949,037.84