Finding the Third Proportional to 11,190,780 and 17,795,053.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,190,780 : 17,795,053.50 = 17,795,053.50 : x
2. Step 2: Convert to fraction form
   11,190,780/17,795,053.50 = 17,795,053.50/x
3. Step 3: Cross multiply
   11,190,780x = 17,795,053.50 × 17,795,053.50
4. Step 4: Simplify right side
   11,190,780x = 316,663,929,067,862.25
5. Step 5: Solve for x
   x = 316,663,929,067,862.25/11,190,780
6. Step 6: Final answer
   x = 28,296,859.47