Finding the Third Proportional to 58,027.50 and 126,990

Step by Step Solution

1. Step 1: Write the proportion equation
   58,027.50 : 126,990 = 126,990 : x
2. Step 2: Convert to fraction form
   58,027.50/126,990 = 126,990/x
3. Step 3: Cross multiply
   58,027.50x = 126,990 × 126,990
4. Step 4: Simplify right side
   58,027.50x = 16,126,460,100
5. Step 5: Solve for x
   x = 16,126,460,100/58,027.50
6. Step 6: Final answer
   x = 277,910.65