Finding the Third Proportional to 2,129,949 and 3,217,099.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,129,949 : 3,217,099.50 = 3,217,099.50 : x
2. Step 2: Convert to fraction form
   2,129,949/3,217,099.50 = 3,217,099.50/x
3. Step 3: Cross multiply
   2,129,949x = 3,217,099.50 × 3,217,099.50
4. Step 4: Simplify right side
   2,129,949x = 10,349,729,192,900.25
5. Step 5: Solve for x
   x = 10,349,729,192,900.25/2,129,949
6. Step 6: Final answer
   x = 4,859,144.14