Finding the Third Proportional to 90,318.94 and 140,648.06

Step by Step Solution

1. Step 1: Write the proportion equation
   90,318.94 : 140,648.06 = 140,648.06 : x
2. Step 2: Convert to fraction form
   90,318.94/140,648.06 = 140,648.06/x
3. Step 3: Cross multiply
   90,318.94x = 140,648.06 × 140,648.06
4. Step 4: Simplify right side
   90,318.94x = 19,781,877,485.00
5. Step 5: Solve for x
   x = 19,781,877,485.00/90,318.94
6. Step 6: Final answer
   x = 219,022.48