Finding the Third Proportional to 4,208,558 and 9,204,412

Step by Step Solution

1. Step 1: Write the proportion equation
   4,208,558 : 9,204,412 = 9,204,412 : x
2. Step 2: Convert to fraction form
   4,208,558/9,204,412 = 9,204,412/x
3. Step 3: Cross multiply
   4,208,558x = 9,204,412 × 9,204,412
4. Step 4: Simplify right side
   4,208,558x = 84,721,200,265,744
5. Step 5: Solve for x
   x = 84,721,200,265,744/4,208,558
6. Step 6: Final answer
   x = 20,130,695.66