Finding the Third Proportional to 2,138,212 and 3,196,842

Step by Step Solution

1. Step 1: Write the proportion equation
   2,138,212 : 3,196,842 = 3,196,842 : x
2. Step 2: Convert to fraction form
   2,138,212/3,196,842 = 3,196,842/x
3. Step 3: Cross multiply
   2,138,212x = 3,196,842 × 3,196,842
4. Step 4: Simplify right side
   2,138,212x = 10,219,798,772,964
5. Step 5: Solve for x
   x = 10,219,798,772,964/2,138,212
6. Step 6: Final answer
   x = 4,779,600.33