Finding the Third Proportional to 7,891,545,231 and 17,172,320,308

Step by Step Solution

1. Step 1: Write the proportion equation
   7,891,545,231 : 17,172,320,308 = 17,172,320,308 : x
2. Step 2: Convert to fraction form
   7,891,545,231/17,172,320,308 = 17,172,320,308/x
3. Step 3: Cross multiply
   7,891,545,231x = 17,172,320,308 × 17,172,320,308
4. Step 4: Simplify right side
   7,891,545,231x = 294,888,584,760,549,212,160
5. Step 5: Solve for x
   x = 294,888,584,760,549,212,160/7,891,545,231
6. Step 6: Final answer
   x = 37,367,660,721.52