Finding the Third Proportional to 11,137,320 and 17,721,841

Step by Step Solution

1. Step 1: Write the proportion equation
   11,137,320 : 17,721,841 = 17,721,841 : x
2. Step 2: Convert to fraction form
   11,137,320/17,721,841 = 17,721,841/x
3. Step 3: Cross multiply
   11,137,320x = 17,721,841 × 17,721,841
4. Step 4: Simplify right side
   11,137,320x = 314,063,648,429,281
5. Step 5: Solve for x
   x = 314,063,648,429,281/11,137,320
6. Step 6: Final answer
   x = 28,199,212.06