Finding the Third Proportional to 31,159.25 and 48,339.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,159.25 : 48,339.50 = 48,339.50 : x
2. Step 2: Convert to fraction form
   31,159.25/48,339.50 = 48,339.50/x
3. Step 3: Cross multiply
   31,159.25x = 48,339.50 × 48,339.50
4. Step 4: Simplify right side
   31,159.25x = 2,336,707,260.25
5. Step 5: Solve for x
   x = 2,336,707,260.25/31,159.25
6. Step 6: Final answer
   x = 74,992.41