Finding the Third Proportional to 615,796 and 980,610

Step by Step Solution

1. Step 1: Write the proportion equation
   615,796 : 980,610 = 980,610 : x
2. Step 2: Convert to fraction form
   615,796/980,610 = 980,610/x
3. Step 3: Cross multiply
   615,796x = 980,610 × 980,610
4. Step 4: Simplify right side
   615,796x = 961,595,972,100
5. Step 5: Solve for x
   x = 961,595,972,100/615,796
6. Step 6: Final answer
   x = 1,561,549.56