Finding the Third Proportional to 1,205,560 and 1,637,256

Step by Step Solution

1. Step 1: Write the proportion equation
   1,205,560 : 1,637,256 = 1,637,256 : x
2. Step 2: Convert to fraction form
   1,205,560/1,637,256 = 1,637,256/x
3. Step 3: Cross multiply
   1,205,560x = 1,637,256 × 1,637,256
4. Step 4: Simplify right side
   1,205,560x = 2,680,607,209,536
5. Step 5: Solve for x
   x = 2,680,607,209,536/1,205,560
6. Step 6: Final answer
   x = 2,223,536.95