Finding the Third Proportional to 2,545,389 and 5,489,298

Step by Step Solution

1. Step 1: Write the proportion equation
   2,545,389 : 5,489,298 = 5,489,298 : x
2. Step 2: Convert to fraction form
   2,545,389/5,489,298 = 5,489,298/x
3. Step 3: Cross multiply
   2,545,389x = 5,489,298 × 5,489,298
4. Step 4: Simplify right side
   2,545,389x = 30,132,392,532,804
5. Step 5: Solve for x
   x = 30,132,392,532,804/2,545,389
6. Step 6: Final answer
   x = 11,838,030.47