Finding the Third Proportional to 615,522 and 1,389,093

Step by Step Solution

1. Step 1: Write the proportion equation
   615,522 : 1,389,093 = 1,389,093 : x
2. Step 2: Convert to fraction form
   615,522/1,389,093 = 1,389,093/x
3. Step 3: Cross multiply
   615,522x = 1,389,093 × 1,389,093
4. Step 4: Simplify right side
   615,522x = 1,929,579,362,649
5. Step 5: Solve for x
   x = 1,929,579,362,649/615,522
6. Step 6: Final answer
   x = 3,134,866.61