Finding the Third Proportional to 10,145,768 and 21,728,084

Step by Step Solution

1. Step 1: Write the proportion equation
   10,145,768 : 21,728,084 = 21,728,084 : x
2. Step 2: Convert to fraction form
   10,145,768/21,728,084 = 21,728,084/x
3. Step 3: Cross multiply
   10,145,768x = 21,728,084 × 21,728,084
4. Step 4: Simplify right side
   10,145,768x = 472,109,634,311,056
5. Step 5: Solve for x
   x = 472,109,634,311,056/10,145,768
6. Step 6: Final answer
   x = 46,532,666.06