Finding the Third Proportional to 5,185,420 and 7,469,272

Step by Step Solution

1. Step 1: Write the proportion equation
   5,185,420 : 7,469,272 = 7,469,272 : x
2. Step 2: Convert to fraction form
   5,185,420/7,469,272 = 7,469,272/x
3. Step 3: Cross multiply
   5,185,420x = 7,469,272 × 7,469,272
4. Step 4: Simplify right side
   5,185,420x = 55,790,024,209,984
5. Step 5: Solve for x
   x = 55,790,024,209,984/5,185,420
6. Step 6: Final answer
   x = 10,759,017.44