Finding the Third Proportional to 3,979,302 and 8,526,372

Step by Step Solution

1. Step 1: Write the proportion equation
   3,979,302 : 8,526,372 = 8,526,372 : x
2. Step 2: Convert to fraction form
   3,979,302/8,526,372 = 8,526,372/x
3. Step 3: Cross multiply
   3,979,302x = 8,526,372 × 8,526,372
4. Step 4: Simplify right side
   3,979,302x = 72,699,019,482,384
5. Step 5: Solve for x
   x = 72,699,019,482,384/3,979,302
6. Step 6: Final answer
   x = 18,269,289.31