Finding the Third Proportional to 90,230 and 127,140

Step by Step Solution

1. Step 1: Write the proportion equation
   90,230 : 127,140 = 127,140 : x
2. Step 2: Convert to fraction form
   90,230/127,140 = 127,140/x
3. Step 3: Cross multiply
   90,230x = 127,140 × 127,140
4. Step 4: Simplify right side
   90,230x = 16,164,579,600
5. Step 5: Solve for x
   x = 16,164,579,600/90,230
6. Step 6: Final answer
   x = 179,148.62