Finding the Third Proportional to 90,196.50 and 140,205

Step by Step Solution

1. Step 1: Write the proportion equation
   90,196.50 : 140,205 = 140,205 : x
2. Step 2: Convert to fraction form
   90,196.50/140,205 = 140,205/x
3. Step 3: Cross multiply
   90,196.50x = 140,205 × 140,205
4. Step 4: Simplify right side
   90,196.50x = 19,657,442,025
5. Step 5: Solve for x
   x = 19,657,442,025/90,196.50
6. Step 6: Final answer
   x = 217,940.19