Finding the Third Proportional to 101,448 and 146,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   101,448 : 146,128.50 = 146,128.50 : x
2. Step 2: Convert to fraction form
   101,448/146,128.50 = 146,128.50/x
3. Step 3: Cross multiply
   101,448x = 146,128.50 × 146,128.50
4. Step 4: Simplify right side
   101,448x = 21,353,538,512.25
5. Step 5: Solve for x
   x = 21,353,538,512.25/101,448
6. Step 6: Final answer
   x = 210,487.53