Finding the Third Proportional to 9,578,414 and 20,485,084

Step by Step Solution

1. Step 1: Write the proportion equation
   9,578,414 : 20,485,084 = 20,485,084 : x
2. Step 2: Convert to fraction form
   9,578,414/20,485,084 = 20,485,084/x
3. Step 3: Cross multiply
   9,578,414x = 20,485,084 × 20,485,084
4. Step 4: Simplify right side
   9,578,414x = 419,638,666,487,056
5. Step 5: Solve for x
   x = 419,638,666,487,056/9,578,414
6. Step 6: Final answer
   x = 43,810,871.66