Finding the Third Proportional to 90,520 and 126,612

Step by Step Solution

1. Step 1: Write the proportion equation
   90,520 : 126,612 = 126,612 : x
2. Step 2: Convert to fraction form
   90,520/126,612 = 126,612/x
3. Step 3: Cross multiply
   90,520x = 126,612 × 126,612
4. Step 4: Simplify right side
   90,520x = 16,030,598,544
5. Step 5: Solve for x
   x = 16,030,598,544/90,520
6. Step 6: Final answer
   x = 177,094.55