Finding the Third Proportional to 136,141.50 and 190,422

Step by Step Solution

1. Step 1: Write the proportion equation
   136,141.50 : 190,422 = 190,422 : x
2. Step 2: Convert to fraction form
   136,141.50/190,422 = 190,422/x
3. Step 3: Cross multiply
   136,141.50x = 190,422 × 190,422
4. Step 4: Simplify right side
   136,141.50x = 36,260,538,084
5. Step 5: Solve for x
   x = 36,260,538,084/136,141.50
6. Step 6: Final answer
   x = 266,344.49