Finding the Third Proportional to 1,220,940 and 1,867,842

Step by Step Solution

1. Step 1: Write the proportion equation
   1,220,940 : 1,867,842 = 1,867,842 : x
2. Step 2: Convert to fraction form
   1,220,940/1,867,842 = 1,867,842/x
3. Step 3: Cross multiply
   1,220,940x = 1,867,842 × 1,867,842
4. Step 4: Simplify right side
   1,220,940x = 3,488,833,736,964
5. Step 5: Solve for x
   x = 3,488,833,736,964/1,220,940
6. Step 6: Final answer
   x = 2,857,498.11