Finding the Third Proportional to 139,952.25 and 216,146.25

Step by Step Solution

1. Step 1: Write the proportion equation
   139,952.25 : 216,146.25 = 216,146.25 : x
2. Step 2: Convert to fraction form
   139,952.25/216,146.25 = 216,146.25/x
3. Step 3: Cross multiply
   139,952.25x = 216,146.25 × 216,146.25
4. Step 4: Simplify right side
   139,952.25x = 46,719,201,389.06
5. Step 5: Solve for x
   x = 46,719,201,389.06/139,952.25
6. Step 6: Final answer
   x = 333,822.44