Finding the Third Proportional to 172,631,635.50 and 369,825,721.50

Step by Step Solution

1. Step 1: Write the proportion equation
   172,631,635.50 : 369,825,721.50 = 369,825,721.50 : x
2. Step 2: Convert to fraction form
   172,631,635.50/369,825,721.50 = 369,825,721.50/x
3. Step 3: Cross multiply
   172,631,635.50x = 369,825,721.50 × 369,825,721.50
4. Step 4: Simplify right side
   172,631,635.50x = 136,771,064,282,995,568
5. Step 5: Solve for x
   x = 136,771,064,282,995,568/172,631,635.50
6. Step 6: Final answer
   x = 792,271,149.42