Finding the Third Proportional to 90,376 and 140,108

Step by Step Solution

1. Step 1: Write the proportion equation
   90,376 : 140,108 = 140,108 : x
2. Step 2: Convert to fraction form
   90,376/140,108 = 140,108/x
3. Step 3: Cross multiply
   90,376x = 140,108 × 140,108
4. Step 4: Simplify right side
   90,376x = 19,630,251,664
5. Step 5: Solve for x
   x = 19,630,251,664/90,376
6. Step 6: Final answer
   x = 217,206.47