Finding the Third Proportional to 87,449.03 and 139,217.82

Step by Step Solution

1. Step 1: Write the proportion equation
   87,449.03 : 139,217.82 = 139,217.82 : x
2. Step 2: Convert to fraction form
   87,449.03/139,217.82 = 139,217.82/x
3. Step 3: Cross multiply
   87,449.03x = 139,217.82 × 139,217.82
4. Step 4: Simplify right side
   87,449.03x = 19,381,601,560.54
5. Step 5: Solve for x
   x = 19,381,601,560.54/87,449.03
6. Step 6: Final answer
   x = 221,633.12