Finding the Third Proportional to 155,982 and 231,678.75

Step by Step Solution

1. Step 1: Write the proportion equation
   155,982 : 231,678.75 = 231,678.75 : x
2. Step 2: Convert to fraction form
   155,982/231,678.75 = 231,678.75/x
3. Step 3: Cross multiply
   155,982x = 231,678.75 × 231,678.75
4. Step 4: Simplify right side
   155,982x = 53,675,043,201.56
5. Step 5: Solve for x
   x = 53,675,043,201.56/155,982
6. Step 6: Final answer
   x = 344,110.49