Finding the Third Proportional to 105,729 and 152,758.50

Step by Step Solution

1. Step 1: Write the proportion equation
   105,729 : 152,758.50 = 152,758.50 : x
2. Step 2: Convert to fraction form
   105,729/152,758.50 = 152,758.50/x
3. Step 3: Cross multiply
   105,729x = 152,758.50 × 152,758.50
4. Step 4: Simplify right side
   105,729x = 23,335,159,322.25
5. Step 5: Solve for x
   x = 23,335,159,322.25/105,729
6. Step 6: Final answer
   x = 220,707.27