Finding the Third Proportional to 73,571,636 and 173,428,826

Step by Step Solution

1. Step 1: Write the proportion equation
   73,571,636 : 173,428,826 = 173,428,826 : x
2. Step 2: Convert to fraction form
   73,571,636/173,428,826 = 173,428,826/x
3. Step 3: Cross multiply
   73,571,636x = 173,428,826 × 173,428,826
4. Step 4: Simplify right side
   73,571,636x = 30,077,557,687,738,276
5. Step 5: Solve for x
   x = 30,077,557,687,738,276/73,571,636
6. Step 6: Final answer
   x = 408,820,019.82