Finding the Third Proportional to 9,468,812 and 20,709,456

Step by Step Solution

1. Step 1: Write the proportion equation
   9,468,812 : 20,709,456 = 20,709,456 : x
2. Step 2: Convert to fraction form
   9,468,812/20,709,456 = 20,709,456/x
3. Step 3: Cross multiply
   9,468,812x = 20,709,456 × 20,709,456
4. Step 4: Simplify right side
   9,468,812x = 428,881,567,815,936
5. Step 5: Solve for x
   x = 428,881,567,815,936/9,468,812
6. Step 6: Final answer
   x = 45,294,126.42