Finding the Third Proportional to 90,535 and 140,979

Step by Step Solution

1. Step 1: Write the proportion equation
   90,535 : 140,979 = 140,979 : x
2. Step 2: Convert to fraction form
   90,535/140,979 = 140,979/x
3. Step 3: Cross multiply
   90,535x = 140,979 × 140,979
4. Step 4: Simplify right side
   90,535x = 19,875,078,441
5. Step 5: Solve for x
   x = 19,875,078,441/90,535
6. Step 6: Final answer
   x = 219,529.23