Finding the Third Proportional to 1,330,280 and 2,057,440

Step by Step Solution

1. Step 1: Write the proportion equation
   1,330,280 : 2,057,440 = 2,057,440 : x
2. Step 2: Convert to fraction form
   1,330,280/2,057,440 = 2,057,440/x
3. Step 3: Cross multiply
   1,330,280x = 2,057,440 × 2,057,440
4. Step 4: Simplify right side
   1,330,280x = 4,233,059,353,600
5. Step 5: Solve for x
   x = 4,233,059,353,600/1,330,280
6. Step 6: Final answer
   x = 3,182,081.48