Finding the Third Proportional to 9,679,303 and 21,065,557

Step by Step Solution

1. Step 1: Write the proportion equation
   9,679,303 : 21,065,557 = 21,065,557 : x
2. Step 2: Convert to fraction form
   9,679,303/21,065,557 = 21,065,557/x
3. Step 3: Cross multiply
   9,679,303x = 21,065,557 × 21,065,557
4. Step 4: Simplify right side
   9,679,303x = 443,757,691,720,249
5. Step 5: Solve for x
   x = 443,757,691,720,249/9,679,303
6. Step 6: Final answer
   x = 45,846,037.85