Finding the Third Proportional to 59,188.50 and 139,702

Step by Step Solution

1. Step 1: Write the proportion equation
   59,188.50 : 139,702 = 139,702 : x
2. Step 2: Convert to fraction form
   59,188.50/139,702 = 139,702/x
3. Step 3: Cross multiply
   59,188.50x = 139,702 × 139,702
4. Step 4: Simplify right side
   59,188.50x = 19,516,648,804
5. Step 5: Solve for x
   x = 19,516,648,804/59,188.50
6. Step 6: Final answer
   x = 329,737.18