Finding the Third Proportional to 90,456 and 130,311

Step by Step Solution

1. Step 1: Write the proportion equation
   90,456 : 130,311 = 130,311 : x
2. Step 2: Convert to fraction form
   90,456/130,311 = 130,311/x
3. Step 3: Cross multiply
   90,456x = 130,311 × 130,311
4. Step 4: Simplify right side
   90,456x = 16,980,956,721
5. Step 5: Solve for x
   x = 16,980,956,721/90,456
6. Step 6: Final answer
   x = 187,726.15