Finding the Third Proportional to 5,811,949 and 7,978,231.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,811,949 : 7,978,231.50 = 7,978,231.50 : x
2. Step 2: Convert to fraction form
   5,811,949/7,978,231.50 = 7,978,231.50/x
3. Step 3: Cross multiply
   5,811,949x = 7,978,231.50 × 7,978,231.50
4. Step 4: Simplify right side
   5,811,949x = 63,652,177,867,592.25
5. Step 5: Solve for x
   x = 63,652,177,867,592.25/5,811,949
6. Step 6: Final answer
   x = 10,951,950.52