Finding the Third Proportional to 655,154 and 1,389,036

Step by Step Solution

1. Step 1: Write the proportion equation
   655,154 : 1,389,036 = 1,389,036 : x
2. Step 2: Convert to fraction form
   655,154/1,389,036 = 1,389,036/x
3. Step 3: Cross multiply
   655,154x = 1,389,036 × 1,389,036
4. Step 4: Simplify right side
   655,154x = 1,929,421,009,296
5. Step 5: Solve for x
   x = 1,929,421,009,296/655,154
6. Step 6: Final answer
   x = 2,944,988.52