Finding the Third Proportional to 556,990 and 1,177,476

Step by Step Solution

1. Step 1: Write the proportion equation
   556,990 : 1,177,476 = 1,177,476 : x
2. Step 2: Convert to fraction form
   556,990/1,177,476 = 1,177,476/x
3. Step 3: Cross multiply
   556,990x = 1,177,476 × 1,177,476
4. Step 4: Simplify right side
   556,990x = 1,386,449,730,576
5. Step 5: Solve for x
   x = 1,386,449,730,576/556,990
6. Step 6: Final answer
   x = 2,489,182.45