Finding the Third Proportional to 1,059,280 and 2,270,128

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059,280 : 2,270,128 = 2,270,128 : x
2. Step 2: Convert to fraction form
   1,059,280/2,270,128 = 2,270,128/x
3. Step 3: Cross multiply
   1,059,280x = 2,270,128 × 2,270,128
4. Step 4: Simplify right side
   1,059,280x = 5,153,481,136,384
5. Step 5: Solve for x
   x = 5,153,481,136,384/1,059,280
6. Step 6: Final answer
   x = 4,865,079.24