Finding the Third Proportional to 3,378,158 and 7,971,208

Step by Step Solution

1. Step 1: Write the proportion equation
   3,378,158 : 7,971,208 = 7,971,208 : x
2. Step 2: Convert to fraction form
   3,378,158/7,971,208 = 7,971,208/x
3. Step 3: Cross multiply
   3,378,158x = 7,971,208 × 7,971,208
4. Step 4: Simplify right side
   3,378,158x = 63,540,156,979,264
5. Step 5: Solve for x
   x = 63,540,156,979,264/3,378,158
6. Step 6: Final answer
   x = 18,809,113.42