Finding the Third Proportional to 3,953,806 and 8,632,610

Step by Step Solution

1. Step 1: Write the proportion equation
   3,953,806 : 8,632,610 = 8,632,610 : x
2. Step 2: Convert to fraction form
   3,953,806/8,632,610 = 8,632,610/x
3. Step 3: Cross multiply
   3,953,806x = 8,632,610 × 8,632,610
4. Step 4: Simplify right side
   3,953,806x = 74,521,955,412,100
5. Step 5: Solve for x
   x = 74,521,955,412,100/3,953,806
6. Step 6: Final answer
   x = 18,848,156.79