Finding the Third Proportional to 11,788,388 and 17,609,786

Step by Step Solution

1. Step 1: Write the proportion equation
   11,788,388 : 17,609,786 = 17,609,786 : x
2. Step 2: Convert to fraction form
   11,788,388/17,609,786 = 17,609,786/x
3. Step 3: Cross multiply
   11,788,388x = 17,609,786 × 17,609,786
4. Step 4: Simplify right side
   11,788,388x = 310,104,562,965,796
5. Step 5: Solve for x
   x = 310,104,562,965,796/11,788,388
6. Step 6: Final answer
   x = 26,305,934.53