Finding the Third Proportional to 11,384,991 and 17,609,503

Step by Step Solution

1. Step 1: Write the proportion equation
   11,384,991 : 17,609,503 = 17,609,503 : x
2. Step 2: Convert to fraction form
   11,384,991/17,609,503 = 17,609,503/x
3. Step 3: Cross multiply
   11,384,991x = 17,609,503 × 17,609,503
4. Step 4: Simplify right side
   11,384,991x = 310,094,595,907,009
5. Step 5: Solve for x
   x = 310,094,595,907,009/11,384,991
6. Step 6: Final answer
   x = 27,237,140.19