Finding the Third Proportional to 121,981.50 and 190,350

Step by Step Solution

1. Step 1: Write the proportion equation
   121,981.50 : 190,350 = 190,350 : x
2. Step 2: Convert to fraction form
   121,981.50/190,350 = 190,350/x
3. Step 3: Cross multiply
   121,981.50x = 190,350 × 190,350
4. Step 4: Simplify right side
   121,981.50x = 36,233,122,500
5. Step 5: Solve for x
   x = 36,233,122,500/121,981.50
6. Step 6: Final answer
   x = 297,037.85