Finding the Third Proportional to 721,112 and 1,538,760

Step by Step Solution

1. Step 1: Write the proportion equation
   721,112 : 1,538,760 = 1,538,760 : x
2. Step 2: Convert to fraction form
   721,112/1,538,760 = 1,538,760/x
3. Step 3: Cross multiply
   721,112x = 1,538,760 × 1,538,760
4. Step 4: Simplify right side
   721,112x = 2,367,782,337,600
5. Step 5: Solve for x
   x = 2,367,782,337,600/721,112
6. Step 6: Final answer
   x = 3,283,515.37