Finding the Third Proportional to 121,434.19 and 190,081.69

Step by Step Solution

1. Step 1: Write the proportion equation
   121,434.19 : 190,081.69 = 190,081.69 : x
2. Step 2: Convert to fraction form
   121,434.19/190,081.69 = 190,081.69/x
3. Step 3: Cross multiply
   121,434.19x = 190,081.69 × 190,081.69
4. Step 4: Simplify right side
   121,434.19x = 36,131,047,922.85
5. Step 5: Solve for x
   x = 36,131,047,922.85/121,434.19
6. Step 6: Final answer
   x = 297,536.05