Finding the Third Proportional to 92,197 and 139,143

Step by Step Solution

1. Step 1: Write the proportion equation
   92,197 : 139,143 = 139,143 : x
2. Step 2: Convert to fraction form
   92,197/139,143 = 139,143/x
3. Step 3: Cross multiply
   92,197x = 139,143 × 139,143
4. Step 4: Simplify right side
   92,197x = 19,360,774,449
5. Step 5: Solve for x
   x = 19,360,774,449/92,197
6. Step 6: Final answer
   x = 209,993.54