Finding the Third Proportional to 90,087 and 141,318

Step by Step Solution

1. Step 1: Write the proportion equation
   90,087 : 141,318 = 141,318 : x
2. Step 2: Convert to fraction form
   90,087/141,318 = 141,318/x
3. Step 3: Cross multiply
   90,087x = 141,318 × 141,318
4. Step 4: Simplify right side
   90,087x = 19,970,777,124
5. Step 5: Solve for x
   x = 19,970,777,124/90,087
6. Step 6: Final answer
   x = 221,683.23