Finding the Third Proportional to 2,555,431 and 5,465,430

Step by Step Solution

1. Step 1: Write the proportion equation
   2,555,431 : 5,465,430 = 5,465,430 : x
2. Step 2: Convert to fraction form
   2,555,431/5,465,430 = 5,465,430/x
3. Step 3: Cross multiply
   2,555,431x = 5,465,430 × 5,465,430
4. Step 4: Simplify right side
   2,555,431x = 29,870,925,084,900
5. Step 5: Solve for x
   x = 29,870,925,084,900/2,555,431
6. Step 6: Final answer
   x = 11,689,192.58