Finding the Third Proportional to 3,493,494 and 7,638,687

Step by Step Solution

1. Step 1: Write the proportion equation
   3,493,494 : 7,638,687 = 7,638,687 : x
2. Step 2: Convert to fraction form
   3,493,494/7,638,687 = 7,638,687/x
3. Step 3: Cross multiply
   3,493,494x = 7,638,687 × 7,638,687
4. Step 4: Simplify right side
   3,493,494x = 58,349,539,083,969
5. Step 5: Solve for x
   x = 58,349,539,083,969/3,493,494
6. Step 6: Final answer
   x = 16,702,344.15