Finding the Third Proportional to 3,901,422 and 8,378,082

Step by Step Solution

1. Step 1: Write the proportion equation
   3,901,422 : 8,378,082 = 8,378,082 : x
2. Step 2: Convert to fraction form
   3,901,422/8,378,082 = 8,378,082/x
3. Step 3: Cross multiply
   3,901,422x = 8,378,082 × 8,378,082
4. Step 4: Simplify right side
   3,901,422x = 70,192,257,998,724
5. Step 5: Solve for x
   x = 70,192,257,998,724/3,901,422
6. Step 6: Final answer
   x = 17,991,454.91