Finding the Third Proportional to 1,178,644 and 2,573,188

Step by Step Solution

1. Step 1: Write the proportion equation
   1,178,644 : 2,573,188 = 2,573,188 : x
2. Step 2: Convert to fraction form
   1,178,644/2,573,188 = 2,573,188/x
3. Step 3: Cross multiply
   1,178,644x = 2,573,188 × 2,573,188
4. Step 4: Simplify right side
   1,178,644x = 6,621,296,483,344
5. Step 5: Solve for x
   x = 6,621,296,483,344/1,178,644
6. Step 6: Final answer
   x = 5,617,723.83