Finding the Third Proportional to 7,407,858 and 11,131,510.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,407,858 : 11,131,510.50 = 11,131,510.50 : x
2. Step 2: Convert to fraction form
   7,407,858/11,131,510.50 = 11,131,510.50/x
3. Step 3: Cross multiply
   7,407,858x = 11,131,510.50 × 11,131,510.50
4. Step 4: Simplify right side
   7,407,858x = 123,910,526,011,610.25
5. Step 5: Solve for x
   x = 123,910,526,011,610.25/7,407,858
6. Step 6: Final answer
   x = 16,726,903.51