Finding the Third Proportional to 1,128,496 and 1,728,168

Step by Step Solution

1. Step 1: Write the proportion equation
   1,128,496 : 1,728,168 = 1,728,168 : x
2. Step 2: Convert to fraction form
   1,128,496/1,728,168 = 1,728,168/x
3. Step 3: Cross multiply
   1,128,496x = 1,728,168 × 1,728,168
4. Step 4: Simplify right side
   1,128,496x = 2,986,564,636,224
5. Step 5: Solve for x
   x = 2,986,564,636,224/1,128,496
6. Step 6: Final answer
   x = 2,646,499.98