Finding the Third Proportional to 717,538 and 1,538,108

Step by Step Solution

1. Step 1: Write the proportion equation
   717,538 : 1,538,108 = 1,538,108 : x
2. Step 2: Convert to fraction form
   717,538/1,538,108 = 1,538,108/x
3. Step 3: Cross multiply
   717,538x = 1,538,108 × 1,538,108
4. Step 4: Simplify right side
   717,538x = 2,365,776,219,664
5. Step 5: Solve for x
   x = 2,365,776,219,664/717,538
6. Step 6: Final answer
   x = 3,297,074.47