Finding the Third Proportional to 4,189,149 and 9,124,785

Step by Step Solution

1. Step 1: Write the proportion equation
   4,189,149 : 9,124,785 = 9,124,785 : x
2. Step 2: Convert to fraction form
   4,189,149/9,124,785 = 9,124,785/x
3. Step 3: Cross multiply
   4,189,149x = 9,124,785 × 9,124,785
4. Step 4: Simplify right side
   4,189,149x = 83,261,701,296,225
5. Step 5: Solve for x
   x = 83,261,701,296,225/4,189,149
6. Step 6: Final answer
   x = 19,875,564.53