Finding the Third Proportional to 655,155 and 1,389,042

Step by Step Solution

1. Step 1: Write the proportion equation
   655,155 : 1,389,042 = 1,389,042 : x
2. Step 2: Convert to fraction form
   655,155/1,389,042 = 1,389,042/x
3. Step 3: Cross multiply
   655,155x = 1,389,042 × 1,389,042
4. Step 4: Simplify right side
   655,155x = 1,929,437,677,764
5. Step 5: Solve for x
   x = 1,929,437,677,764/655,155
6. Step 6: Final answer
   x = 2,945,009.47