Finding the Third Proportional to 906,192 and 1,439,640

Step by Step Solution

1. Step 1: Write the proportion equation
   906,192 : 1,439,640 = 1,439,640 : x
2. Step 2: Convert to fraction form
   906,192/1,439,640 = 1,439,640/x
3. Step 3: Cross multiply
   906,192x = 1,439,640 × 1,439,640
4. Step 4: Simplify right side
   906,192x = 2,072,563,329,600
5. Step 5: Solve for x
   x = 2,072,563,329,600/906,192
6. Step 6: Final answer
   x = 2,287,112.81