Finding the Third Proportional to 4,453,671 and 9,758,538

Step by Step Solution

1. Step 1: Write the proportion equation
   4,453,671 : 9,758,538 = 9,758,538 : x
2. Step 2: Convert to fraction form
   4,453,671/9,758,538 = 9,758,538/x
3. Step 3: Cross multiply
   4,453,671x = 9,758,538 × 9,758,538
4. Step 4: Simplify right side
   4,453,671x = 95,229,063,897,444
5. Step 5: Solve for x
   x = 95,229,063,897,444/4,453,671
6. Step 6: Final answer
   x = 21,382,150.57