Finding the Third Proportional to 4,538,970 and 9,834,408

Step by Step Solution

1. Step 1: Write the proportion equation
   4,538,970 : 9,834,408 = 9,834,408 : x
2. Step 2: Convert to fraction form
   4,538,970/9,834,408 = 9,834,408/x
3. Step 3: Cross multiply
   4,538,970x = 9,834,408 × 9,834,408
4. Step 4: Simplify right side
   4,538,970x = 96,715,580,710,464
5. Step 5: Solve for x
   x = 96,715,580,710,464/4,538,970
6. Step 6: Final answer
   x = 21,307,825.50