Finding the Third Proportional to 121,162.50 and 190,566

Step by Step Solution

1. Step 1: Write the proportion equation
   121,162.50 : 190,566 = 190,566 : x
2. Step 2: Convert to fraction form
   121,162.50/190,566 = 190,566/x
3. Step 3: Cross multiply
   121,162.50x = 190,566 × 190,566
4. Step 4: Simplify right side
   121,162.50x = 36,315,400,356
5. Step 5: Solve for x
   x = 36,315,400,356/121,162.50
6. Step 6: Final answer
   x = 299,724.75