Finding the Third Proportional to 81,871.69 and 130,188.94

Step by Step Solution

1. Step 1: Write the proportion equation
   81,871.69 : 130,188.94 = 130,188.94 : x
2. Step 2: Convert to fraction form
   81,871.69/130,188.94 = 130,188.94/x
3. Step 3: Cross multiply
   81,871.69x = 130,188.94 × 130,188.94
4. Step 4: Simplify right side
   81,871.69x = 16,949,159,447.38
5. Step 5: Solve for x
   x = 16,949,159,447.38/81,871.69
6. Step 6: Final answer
   x = 207,021.01