Finding the Third Proportional to 5,147,228 and 10,165,272

Step by Step Solution

1. Step 1: Write the proportion equation
   5,147,228 : 10,165,272 = 10,165,272 : x
2. Step 2: Convert to fraction form
   5,147,228/10,165,272 = 10,165,272/x
3. Step 3: Cross multiply
   5,147,228x = 10,165,272 × 10,165,272
4. Step 4: Simplify right side
   5,147,228x = 103,332,754,833,984
5. Step 5: Solve for x
   x = 103,332,754,833,984/5,147,228
6. Step 6: Final answer
   x = 20,075,418.23