Finding the Third Proportional to 109,939.50 and 242,847

Step by Step Solution

1. Step 1: Write the proportion equation
   109,939.50 : 242,847 = 242,847 : x
2. Step 2: Convert to fraction form
   109,939.50/242,847 = 242,847/x
3. Step 3: Cross multiply
   109,939.50x = 242,847 × 242,847
4. Step 4: Simplify right side
   109,939.50x = 58,974,665,409
5. Step 5: Solve for x
   x = 58,974,665,409/109,939.50
6. Step 6: Final answer
   x = 536,428.36