Finding the Third Proportional to 725,138 and 1,555,252

Step by Step Solution

1. Step 1: Write the proportion equation
   725,138 : 1,555,252 = 1,555,252 : x
2. Step 2: Convert to fraction form
   725,138/1,555,252 = 1,555,252/x
3. Step 3: Cross multiply
   725,138x = 1,555,252 × 1,555,252
4. Step 4: Simplify right side
   725,138x = 2,418,808,783,504
5. Step 5: Solve for x
   x = 2,418,808,783,504/725,138
6. Step 6: Final answer
   x = 3,335,653.05