Finding the Third Proportional to 59,257.50 and 139,881

Step by Step Solution

1. Step 1: Write the proportion equation
   59,257.50 : 139,881 = 139,881 : x
2. Step 2: Convert to fraction form
   59,257.50/139,881 = 139,881/x
3. Step 3: Cross multiply
   59,257.50x = 139,881 × 139,881
4. Step 4: Simplify right side
   59,257.50x = 19,566,694,161
5. Step 5: Solve for x
   x = 19,566,694,161/59,257.50
6. Step 6: Final answer
   x = 330,197.77