Finding the Third Proportional to 3,919,266 and 8,469,090

Step by Step Solution

1. Step 1: Write the proportion equation
   3,919,266 : 8,469,090 = 8,469,090 : x
2. Step 2: Convert to fraction form
   3,919,266/8,469,090 = 8,469,090/x
3. Step 3: Cross multiply
   3,919,266x = 8,469,090 × 8,469,090
4. Step 4: Simplify right side
   3,919,266x = 71,725,485,428,100
5. Step 5: Solve for x
   x = 71,725,485,428,100/3,919,266
6. Step 6: Final answer
   x = 18,300,744.43