Finding the Third Proportional to 68,238 and 146,740.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,238 : 146,740.50 = 146,740.50 : x
2. Step 2: Convert to fraction form
   68,238/146,740.50 = 146,740.50/x
3. Step 3: Cross multiply
   68,238x = 146,740.50 × 146,740.50
4. Step 4: Simplify right side
   68,238x = 21,532,774,340.25
5. Step 5: Solve for x
   x = 21,532,774,340.25/68,238
6. Step 6: Final answer
   x = 315,554.01