Finding the Third Proportional to 1,005,380 and 2,187,668

Step by Step Solution

1. Step 1: Write the proportion equation
   1,005,380 : 2,187,668 = 2,187,668 : x
2. Step 2: Convert to fraction form
   1,005,380/2,187,668 = 2,187,668/x
3. Step 3: Cross multiply
   1,005,380x = 2,187,668 × 2,187,668
4. Step 4: Simplify right side
   1,005,380x = 4,785,891,278,224
5. Step 5: Solve for x
   x = 4,785,891,278,224/1,005,380
6. Step 6: Final answer
   x = 4,760,280.97