Finding the Third Proportional to 4,320,459 and 9,454,614

Step by Step Solution

1. Step 1: Write the proportion equation
   4,320,459 : 9,454,614 = 9,454,614 : x
2. Step 2: Convert to fraction form
   4,320,459/9,454,614 = 9,454,614/x
3. Step 3: Cross multiply
   4,320,459x = 9,454,614 × 9,454,614
4. Step 4: Simplify right side
   4,320,459x = 89,389,725,888,996
5. Step 5: Solve for x
   x = 89,389,725,888,996/4,320,459
6. Step 6: Final answer
   x = 20,689,867.88