Finding the Third Proportional to 1,287,624 and 2,038,440

Step by Step Solution

1. Step 1: Write the proportion equation
   1,287,624 : 2,038,440 = 2,038,440 : x
2. Step 2: Convert to fraction form
   1,287,624/2,038,440 = 2,038,440/x
3. Step 3: Cross multiply
   1,287,624x = 2,038,440 × 2,038,440
4. Step 4: Simplify right side
   1,287,624x = 4,155,237,633,600
5. Step 5: Solve for x
   x = 4,155,237,633,600/1,287,624
6. Step 6: Final answer
   x = 3,227,058.24