Finding the Third Proportional to 2,150,949 and 4,681,221

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150,949 : 4,681,221 = 4,681,221 : x
2. Step 2: Convert to fraction form
   2,150,949/4,681,221 = 4,681,221/x
3. Step 3: Cross multiply
   2,150,949x = 4,681,221 × 4,681,221
4. Step 4: Simplify right side
   2,150,949x = 21,913,830,050,841
5. Step 5: Solve for x
   x = 21,913,830,050,841/2,150,949
6. Step 6: Final answer
   x = 10,187,982.17