Finding the Third Proportional to 9,238,473,218 and 21,557,182,469

Step by Step Solution

1. Step 1: Write the proportion equation
   9,238,473,218 : 21,557,182,469 = 21,557,182,469 : x
2. Step 2: Convert to fraction form
   9,238,473,218/21,557,182,469 = 21,557,182,469/x
3. Step 3: Cross multiply
   9,238,473,218x = 21,557,182,469 × 21,557,182,469
4. Step 4: Simplify right side
   9,238,473,218x = 464,712,116,001,760,935,936
5. Step 5: Solve for x
   x = 464,712,116,001,760,935,936/9,238,473,218
6. Step 6: Final answer
   x = 50,301,830,728.52