Finding the Third Proportional to 11,137,396 and 17,721,960

Step by Step Solution

1. Step 1: Write the proportion equation
   11,137,396 : 17,721,960 = 17,721,960 : x
2. Step 2: Convert to fraction form
   11,137,396/17,721,960 = 17,721,960/x
3. Step 3: Cross multiply
   11,137,396x = 17,721,960 × 17,721,960
4. Step 4: Simplify right side
   11,137,396x = 314,067,866,241,600
5. Step 5: Solve for x
   x = 314,067,866,241,600/11,137,396
6. Step 6: Final answer
   x = 28,199,398.34