Finding the Third Proportional to 4,309,864 and 9,427,456

Step by Step Solution

1. Step 1: Write the proportion equation
   4,309,864 : 9,427,456 = 9,427,456 : x
2. Step 2: Convert to fraction form
   4,309,864/9,427,456 = 9,427,456/x
3. Step 3: Cross multiply
   4,309,864x = 9,427,456 × 9,427,456
4. Step 4: Simplify right side
   4,309,864x = 88,876,926,631,936
5. Step 5: Solve for x
   x = 88,876,926,631,936/4,309,864
6. Step 6: Final answer
   x = 20,621,747.38