Finding the Third Proportional to 90,871.88 and 130,076.72

Step by Step Solution

1. Step 1: Write the proportion equation
   90,871.88 : 130,076.72 = 130,076.72 : x
2. Step 2: Convert to fraction form
   90,871.88/130,076.72 = 130,076.72/x
3. Step 3: Cross multiply
   90,871.88x = 130,076.72 × 130,076.72
4. Step 4: Simplify right side
   90,871.88x = 16,919,952,760.77
5. Step 5: Solve for x
   x = 16,919,952,760.77/90,871.88
6. Step 6: Final answer
   x = 186,195.70