Finding the Third Proportional to 2,265,509 and 3,431,166

Step by Step Solution

1. Step 1: Write the proportion equation
   2,265,509 : 3,431,166 = 3,431,166 : x
2. Step 2: Convert to fraction form
   2,265,509/3,431,166 = 3,431,166/x
3. Step 3: Cross multiply
   2,265,509x = 3,431,166 × 3,431,166
4. Step 4: Simplify right side
   2,265,509x = 11,772,900,119,556
5. Step 5: Solve for x
   x = 11,772,900,119,556/2,265,509
6. Step 6: Final answer
   x = 5,196,580.60