Finding the Third Proportional to 725,140 and 1,555,256

Step by Step Solution

1. Step 1: Write the proportion equation
   725,140 : 1,555,256 = 1,555,256 : x
2. Step 2: Convert to fraction form
   725,140/1,555,256 = 1,555,256/x
3. Step 3: Cross multiply
   725,140x = 1,555,256 × 1,555,256
4. Step 4: Simplify right side
   725,140x = 2,418,821,225,536
5. Step 5: Solve for x
   x = 2,418,821,225,536/725,140
6. Step 6: Final answer
   x = 3,335,661.01