Finding the Third Proportional to 4,121,378 and 8,852,162

Step by Step Solution

1. Step 1: Write the proportion equation
   4,121,378 : 8,852,162 = 8,852,162 : x
2. Step 2: Convert to fraction form
   4,121,378/8,852,162 = 8,852,162/x
3. Step 3: Cross multiply
   4,121,378x = 8,852,162 × 8,852,162
4. Step 4: Simplify right side
   4,121,378x = 78,360,772,074,244
5. Step 5: Solve for x
   x = 78,360,772,074,244/4,121,378
6. Step 6: Final answer
   x = 19,013,245.59