Finding the Third Proportional to 139,194 and 216,082.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,194 : 216,082.50 = 216,082.50 : x
2. Step 2: Convert to fraction form
   139,194/216,082.50 = 216,082.50/x
3. Step 3: Cross multiply
   139,194x = 216,082.50 × 216,082.50
4. Step 4: Simplify right side
   139,194x = 46,691,646,806.25
5. Step 5: Solve for x
   x = 46,691,646,806.25/139,194
6. Step 6: Final answer
   x = 335,442.96