Finding the Third Proportional to 2,181,396 and 4,659,729

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181,396 : 4,659,729 = 4,659,729 : x
2. Step 2: Convert to fraction form
   2,181,396/4,659,729 = 4,659,729/x
3. Step 3: Cross multiply
   2,181,396x = 4,659,729 × 4,659,729
4. Step 4: Simplify right side
   2,181,396x = 21,713,074,353,441
5. Step 5: Solve for x
   x = 21,713,074,353,441/2,181,396
6. Step 6: Final answer
   x = 9,953,751.80