Finding the Third Proportional to 3,561,308 and 8,398,412

Step by Step Solution

1. Step 1: Write the proportion equation
   3,561,308 : 8,398,412 = 8,398,412 : x
2. Step 2: Convert to fraction form
   3,561,308/8,398,412 = 8,398,412/x
3. Step 3: Cross multiply
   3,561,308x = 8,398,412 × 8,398,412
4. Step 4: Simplify right side
   3,561,308x = 70,533,324,121,744
5. Step 5: Solve for x
   x = 70,533,324,121,744/3,561,308
6. Step 6: Final answer
   x = 19,805,454.66