Finding the Third Proportional to 135,672 and 199,443.75

Step by Step Solution

1. Step 1: Write the proportion equation
   135,672 : 199,443.75 = 199,443.75 : x
2. Step 2: Convert to fraction form
   135,672/199,443.75 = 199,443.75/x
3. Step 3: Cross multiply
   135,672x = 199,443.75 × 199,443.75
4. Step 4: Simplify right side
   135,672x = 39,777,809,414.06
5. Step 5: Solve for x
   x = 39,777,809,414.06/135,672
6. Step 6: Final answer
   x = 293,191.00