Finding the Third Proportional to 3,561,482 and 8,398,769

Step by Step Solution

1. Step 1: Write the proportion equation
   3,561,482 : 8,398,769 = 8,398,769 : x
2. Step 2: Convert to fraction form
   3,561,482/8,398,769 = 8,398,769/x
3. Step 3: Cross multiply
   3,561,482x = 8,398,769 × 8,398,769
4. Step 4: Simplify right side
   3,561,482x = 70,539,320,715,361
5. Step 5: Solve for x
   x = 70,539,320,715,361/3,561,482
6. Step 6: Final answer
   x = 19,806,170.78