Finding the Third Proportional to 4,090,394 and 6,402,567

Step by Step Solution

1. Step 1: Write the proportion equation
   4,090,394 : 6,402,567 = 6,402,567 : x
2. Step 2: Convert to fraction form
   4,090,394/6,402,567 = 6,402,567/x
3. Step 3: Cross multiply
   4,090,394x = 6,402,567 × 6,402,567
4. Step 4: Simplify right side
   4,090,394x = 40,992,864,189,489
5. Step 5: Solve for x
   x = 40,992,864,189,489/4,090,394
6. Step 6: Final answer
   x = 10,021,739.76