Finding the Third Proportional to 90,082 and 139,493.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,082 : 139,493.50 = 139,493.50 : x
2. Step 2: Convert to fraction form
   90,082/139,493.50 = 139,493.50/x
3. Step 3: Cross multiply
   90,082x = 139,493.50 × 139,493.50
4. Step 4: Simplify right side
   90,082x = 19,458,436,542.25
5. Step 5: Solve for x
   x = 19,458,436,542.25/90,082
6. Step 6: Final answer
   x = 216,008.04