Finding the Third Proportional to 48,390 and 101,215.50

Step by Step Solution

1. Step 1: Write the proportion equation
   48,390 : 101,215.50 = 101,215.50 : x
2. Step 2: Convert to fraction form
   48,390/101,215.50 = 101,215.50/x
3. Step 3: Cross multiply
   48,390x = 101,215.50 × 101,215.50
4. Step 4: Simplify right side
   48,390x = 10,244,577,440.25
5. Step 5: Solve for x
   x = 10,244,577,440.25/48,390
6. Step 6: Final answer
   x = 211,708.56