Finding the Third Proportional to 100,072.50 and 154,784

Step by Step Solution

1. Step 1: Write the proportion equation
   100,072.50 : 154,784 = 154,784 : x
2. Step 2: Convert to fraction form
   100,072.50/154,784 = 154,784/x
3. Step 3: Cross multiply
   100,072.50x = 154,784 × 154,784
4. Step 4: Simplify right side
   100,072.50x = 23,958,086,656
5. Step 5: Solve for x
   x = 23,958,086,656/100,072.50
6. Step 6: Final answer
   x = 239,407.30