Finding the Third Proportional to 13,240.13 and 31,186.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,240.13 : 31,186.69 = 31,186.69 : x
2. Step 2: Convert to fraction form
   13,240.13/31,186.69 = 31,186.69/x
3. Step 3: Cross multiply
   13,240.13x = 31,186.69 × 31,186.69
4. Step 4: Simplify right side
   13,240.13x = 972,609,477.22
5. Step 5: Solve for x
   x = 972,609,477.22/13,240.13
6. Step 6: Final answer
   x = 73,459.24