Finding the Third Proportional to 721,182 and 1,538,898

Step by Step Solution

1. Step 1: Write the proportion equation
   721,182 : 1,538,898 = 1,538,898 : x
2. Step 2: Convert to fraction form
   721,182/1,538,898 = 1,538,898/x
3. Step 3: Cross multiply
   721,182x = 1,538,898 × 1,538,898
4. Step 4: Simplify right side
   721,182x = 2,368,207,054,404
5. Step 5: Solve for x
   x = 2,368,207,054,404/721,182
6. Step 6: Final answer
   x = 3,283,785.58