Finding the Third Proportional to 1,128,492 and 1,728,162

Step by Step Solution

1. Step 1: Write the proportion equation
   1,128,492 : 1,728,162 = 1,728,162 : x
2. Step 2: Convert to fraction form
   1,128,492/1,728,162 = 1,728,162/x
3. Step 3: Cross multiply
   1,128,492x = 1,728,162 × 1,728,162
4. Step 4: Simplify right side
   1,128,492x = 2,986,543,898,244
5. Step 5: Solve for x
   x = 2,986,543,898,244/1,128,492
6. Step 6: Final answer
   x = 2,646,490.98