Finding the Third Proportional to 2,157,842 and 3,221,986

Step by Step Solution

1. Step 1: Write the proportion equation
   2,157,842 : 3,221,986 = 3,221,986 : x
2. Step 2: Convert to fraction form
   2,157,842/3,221,986 = 3,221,986/x
3. Step 3: Cross multiply
   2,157,842x = 3,221,986 × 3,221,986
4. Step 4: Simplify right side
   2,157,842x = 10,381,193,784,196
5. Step 5: Solve for x
   x = 10,381,193,784,196/2,157,842
6. Step 6: Final answer
   x = 4,810,914.69