Finding the Third Proportional to 1,319,840 and 2,058,636

Step by Step Solution

1. Step 1: Write the proportion equation
   1,319,840 : 2,058,636 = 2,058,636 : x
2. Step 2: Convert to fraction form
   1,319,840/2,058,636 = 2,058,636/x
3. Step 3: Cross multiply
   1,319,840x = 2,058,636 × 2,058,636
4. Step 4: Simplify right side
   1,319,840x = 4,237,982,180,496
5. Step 5: Solve for x
   x = 4,237,982,180,496/1,319,840
6. Step 6: Final answer
   x = 3,210,981.77