Finding the Third Proportional to 2,158,372.13 and 3,118,222.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,372.13 : 3,118,222.69 = 3,118,222.69 : x
2. Step 2: Convert to fraction form
   2,158,372.13/3,118,222.69 = 3,118,222.69/x
3. Step 3: Cross multiply
   2,158,372.13x = 3,118,222.69 × 3,118,222.69
4. Step 4: Simplify right side
   2,158,372.13x = 9,723,312,728,839.72
5. Step 5: Solve for x
   x = 9,723,312,728,839.72/2,158,372.13
6. Step 6: Final answer
   x = 4,504,928.79