Finding the Third Proportional to 7,891,545,142.50 and 17,172,320,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,891,545,142.50 : 17,172,320,128.50 = 17,172,320,128.50 : x
2. Step 2: Convert to fraction form
   7,891,545,142.50/17,172,320,128.50 = 17,172,320,128.50/x
3. Step 3: Cross multiply
   7,891,545,142.50x = 17,172,320,128.50 × 17,172,320,128.50
4. Step 4: Simplify right side
   7,891,545,142.50x = 294,888,578,595,686,252,544
5. Step 5: Solve for x
   x = 294,888,578,595,686,252,544/7,891,545,142.50
6. Step 6: Final answer
   x = 37,367,660,359.38