Finding the Third Proportional to 11,384,989 and 17,609,499.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,384,989 : 17,609,499.50 = 17,609,499.50 : x
2. Step 2: Convert to fraction form
   11,384,989/17,609,499.50 = 17,609,499.50/x
3. Step 3: Cross multiply
   11,384,989x = 17,609,499.50 × 17,609,499.50
4. Step 4: Simplify right side
   11,384,989x = 310,094,472,640,500.25
5. Step 5: Solve for x
   x = 310,094,472,640,500.25/11,384,989
6. Step 6: Final answer
   x = 27,237,134.15