Finding the Third Proportional to 90,255.94 and 140,319

Step by Step Solution

1. Step 1: Write the proportion equation
   90,255.94 : 140,319 = 140,319 : x
2. Step 2: Convert to fraction form
   90,255.94/140,319 = 140,319/x
3. Step 3: Cross multiply
   90,255.94x = 140,319 × 140,319
4. Step 4: Simplify right side
   90,255.94x = 19,689,421,761
5. Step 5: Solve for x
   x = 19,689,421,761/90,255.94
6. Step 6: Final answer
   x = 218,150.99