Finding the Third Proportional to 132,870 and 221,449.50

Step by Step Solution

1. Step 1: Write the proportion equation
   132,870 : 221,449.50 = 221,449.50 : x
2. Step 2: Convert to fraction form
   132,870/221,449.50 = 221,449.50/x
3. Step 3: Cross multiply
   132,870x = 221,449.50 × 221,449.50
4. Step 4: Simplify right side
   132,870x = 49,039,881,050.25
5. Step 5: Solve for x
   x = 49,039,881,050.25/132,870
6. Step 6: Final answer
   x = 369,081.67