Finding the Third Proportional to 1,319,842 and 2,058,639

Step by Step Solution

1. Step 1: Write the proportion equation
   1,319,842 : 2,058,639 = 2,058,639 : x
2. Step 2: Convert to fraction form
   1,319,842/2,058,639 = 2,058,639/x
3. Step 3: Cross multiply
   1,319,842x = 2,058,639 × 2,058,639
4. Step 4: Simplify right side
   1,319,842x = 4,237,994,532,321
5. Step 5: Solve for x
   x = 4,237,994,532,321/1,319,842
6. Step 6: Final answer
   x = 3,210,986.26